Home / 39,718.46-54,781.12-26,981.46

Finding the Fourth Proportional to 39,718.46, 54,781.12 and 26,981.46

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Solution

The fourth proportional to 39,718.46, 54,781.12 and 26,981.46 is: 37,213.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,718.46 : 54,781.12 = 26,981.46 : x
  2. Step 2: Convert to fraction form
    39,718.46/54,781.12 = 26,981.46/x
  3. Step 3: Cross multiply
    39,718.46x = 54,781.12 × 26,981.46
  4. Step 4: Simplify right side
    39,718.46x = 1,478,074,598.04
  5. Step 5: Solve for x
    x = 1,478,074,598.04/39,718.46
  6. Step 6: Final answer
    x = 37,213.79

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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.