Home / 27,154.64-37,524.87-20,428.61

Finding the Fourth Proportional to 27,154.64, 37,524.87 and 20,428.61

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Solution

The fourth proportional to 27,154.64, 37,524.87 and 20,428.61 is: 28,230.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,154.64 : 37,524.87 = 20,428.61 : x
  2. Step 2: Convert to fraction form
    27,154.64/37,524.87 = 20,428.61/x
  3. Step 3: Cross multiply
    27,154.64x = 37,524.87 × 20,428.61
  4. Step 4: Simplify right side
    27,154.64x = 766,580,746.91
  5. Step 5: Solve for x
    x = 766,580,746.91/27,154.64
  6. Step 6: Final answer
    x = 28,230.19

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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.