Home / 27,153.78-37,465.18-16,390.15

Finding the Fourth Proportional to 27,153.78, 37,465.18 and 16,390.15

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Solution

The fourth proportional to 27,153.78, 37,465.18 and 16,390.15 is: 22,614.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,153.78 : 37,465.18 = 16,390.15 : x
  2. Step 2: Convert to fraction form
    27,153.78/37,465.18 = 16,390.15/x
  3. Step 3: Cross multiply
    27,153.78x = 37,465.18 × 16,390.15
  4. Step 4: Simplify right side
    27,153.78x = 614,059,877.53
  5. Step 5: Solve for x
    x = 614,059,877.53/27,153.78
  6. Step 6: Final answer
    x = 22,614.16

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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.