Home / 27,566.40-38,039.12-15,630.80

Finding the Fourth Proportional to 27,566.40, 38,039.12 and 15,630.80

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Solution

The fourth proportional to 27,566.40, 38,039.12 and 15,630.80 is: 21,569.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,566.40 : 38,039.12 = 15,630.80 : x
  2. Step 2: Convert to fraction form
    27,566.40/38,039.12 = 15,630.80/x
  3. Step 3: Cross multiply
    27,566.40x = 38,039.12 × 15,630.80
  4. Step 4: Simplify right side
    27,566.40x = 594,581,876.90
  5. Step 5: Solve for x
    x = 594,581,876.90/27,566.40
  6. Step 6: Final answer
    x = 21,569.08

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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.