Home / 39,393.10-54,360.48-21,487.96

Finding the Fourth Proportional to 39,393.10, 54,360.48 and 21,487.96

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Solution

The fourth proportional to 39,393.10, 54,360.48 and 21,487.96 is: 29,652.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,393.10 : 54,360.48 = 21,487.96 : x
  2. Step 2: Convert to fraction form
    39,393.10/54,360.48 = 21,487.96/x
  3. Step 3: Cross multiply
    39,393.10x = 54,360.48 × 21,487.96
  4. Step 4: Simplify right side
    39,393.10x = 1,168,095,819.82
  5. Step 5: Solve for x
    x = 1,168,095,819.82/39,393.10
  6. Step 6: Final answer
    x = 29,652.29

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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.