Home / 27,478.77-37,920.87-16,864.53

Finding the Fourth Proportional to 27,478.77, 37,920.87 and 16,864.53

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Solution

The fourth proportional to 27,478.77, 37,920.87 and 16,864.53 is: 23,273.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,478.77 : 37,920.87 = 16,864.53 : x
  2. Step 2: Convert to fraction form
    27,478.77/37,920.87 = 16,864.53/x
  3. Step 3: Cross multiply
    27,478.77x = 37,920.87 × 16,864.53
  4. Step 4: Simplify right side
    27,478.77x = 639,517,649.74
  5. Step 5: Solve for x
    x = 639,517,649.74/27,478.77
  6. Step 6: Final answer
    x = 23,273.15

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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.