Home / 27,957.38-38,581.27-15,210.55

Finding the Fourth Proportional to 27,957.38, 38,581.27 and 15,210.55

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Solution

The fourth proportional to 27,957.38, 38,581.27 and 15,210.55 is: 20,990.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,957.38 : 38,581.27 = 15,210.55 : x
  2. Step 2: Convert to fraction form
    27,957.38/38,581.27 = 15,210.55/x
  3. Step 3: Cross multiply
    27,957.38x = 38,581.27 × 15,210.55
  4. Step 4: Simplify right side
    27,957.38x = 586,842,389.38
  5. Step 5: Solve for x
    x = 586,842,389.38/27,957.38
  6. Step 6: Final answer
    x = 20,990.61

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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.