Home / 21,195.77-29,248.16-12,697.74

Finding the Fourth Proportional to 21,195.77, 29,248.16 and 12,697.74

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Solution

The fourth proportional to 21,195.77, 29,248.16 and 12,697.74 is: 17,521.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,195.77 : 29,248.16 = 12,697.74 : x
  2. Step 2: Convert to fraction form
    21,195.77/29,248.16 = 12,697.74/x
  3. Step 3: Cross multiply
    21,195.77x = 29,248.16 × 12,697.74
  4. Step 4: Simplify right side
    21,195.77x = 371,385,467.67
  5. Step 5: Solve for x
    x = 371,385,467.67/21,195.77
  6. Step 6: Final answer
    x = 17,521.68

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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.