Home / 27,151.49-40,728.05-10,280.81

Finding the Fourth Proportional to 27,151.49, 40,728.05 and 10,280.81

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Solution

The fourth proportional to 27,151.49, 40,728.05 and 10,280.81 is: 15,421.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,151.49 : 40,728.05 = 10,280.81 : x
  2. Step 2: Convert to fraction form
    27,151.49/40,728.05 = 10,280.81/x
  3. Step 3: Cross multiply
    27,151.49x = 40,728.05 × 10,280.81
  4. Step 4: Simplify right side
    27,151.49x = 418,717,088.68
  5. Step 5: Solve for x
    x = 418,717,088.68/27,151.49
  6. Step 6: Final answer
    x = 15,421.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.