Home / 28,502.66-39,341.20-16,404.63

Finding the Fourth Proportional to 28,502.66, 39,341.20 and 16,404.63

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Solution

The fourth proportional to 28,502.66, 39,341.20 and 16,404.63 is: 22,642.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,502.66 : 39,341.20 = 16,404.63 : x
  2. Step 2: Convert to fraction form
    28,502.66/39,341.20 = 16,404.63/x
  3. Step 3: Cross multiply
    28,502.66x = 39,341.20 × 16,404.63
  4. Step 4: Simplify right side
    28,502.66x = 645,377,731.40
  5. Step 5: Solve for x
    x = 645,377,731.40/28,502.66
  6. Step 6: Final answer
    x = 22,642.72

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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.