Home / 21,372,521.20-29,495,555.04-13,003,156.96

Finding the Fourth Proportional to 21,372,521.20, 29,495,555.04 and 13,003,156.96

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Solution

The fourth proportional to 21,372,521.20, 29,495,555.04 and 13,003,156.96 is: 17,945,254.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,372,521.20 : 29,495,555.04 = 13,003,156.96 : x
  2. Step 2: Convert to fraction form
    21,372,521.20/29,495,555.04 = 13,003,156.96/x
  3. Step 3: Cross multiply
    21,372,521.20x = 29,495,555.04 × 13,003,156.96
  4. Step 4: Simplify right side
    21,372,521.20x = 383,535,331,807,439.06
  5. Step 5: Solve for x
    x = 383,535,331,807,439.06/21,372,521.20
  6. Step 6: Final answer
    x = 17,945,254.48

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.