Home / 29,205.90-40,304.14-15,777.16

Finding the Fourth Proportional to 29,205.90, 40,304.14 and 15,777.16

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Solution

The fourth proportional to 29,205.90, 40,304.14 and 15,777.16 is: 21,772.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,205.90 : 40,304.14 = 15,777.16 : x
  2. Step 2: Convert to fraction form
    29,205.90/40,304.14 = 15,777.16/x
  3. Step 3: Cross multiply
    29,205.90x = 40,304.14 × 15,777.16
  4. Step 4: Simplify right side
    29,205.90x = 635,884,725.24
  5. Step 5: Solve for x
    x = 635,884,725.24/29,205.90
  6. Step 6: Final answer
    x = 21,772.47

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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.