Home / 28,085,376-38,757,962.16-15,695,676.24

Finding the Fourth Proportional to 28,085,376, 38,757,962.16 and 15,695,676.24

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Solution

The fourth proportional to 28,085,376, 38,757,962.16 and 15,695,676.24 is: 21,660,113.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,085,376 : 38,757,962.16 = 15,695,676.24 : x
  2. Step 2: Convert to fraction form
    28,085,376/38,757,962.16 = 15,695,676.24/x
  3. Step 3: Cross multiply
    28,085,376x = 38,757,962.16 × 15,695,676.24
  4. Step 4: Simplify right side
    28,085,376x = 608,332,425,785,531
  5. Step 5: Solve for x
    x = 608,332,425,785,531/28,085,376
  6. Step 6: Final answer
    x = 21,660,113.28

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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.