Home / 27,750.80-38,294.15-15,651.74

Finding the Fourth Proportional to 27,750.80, 38,294.15 and 15,651.74

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Solution

The fourth proportional to 27,750.80, 38,294.15 and 15,651.74 is: 21,598.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,750.80 : 38,294.15 = 15,651.74 : x
  2. Step 2: Convert to fraction form
    27,750.80/38,294.15 = 15,651.74/x
  3. Step 3: Cross multiply
    27,750.80x = 38,294.15 × 15,651.74
  4. Step 4: Simplify right side
    27,750.80x = 599,369,809.59
  5. Step 5: Solve for x
    x = 599,369,809.59/27,750.80
  6. Step 6: Final answer
    x = 21,598.29

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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.