Home / 27,625.77-38,147.91-20,539.89

Finding the Fourth Proportional to 27,625.77, 38,147.91 and 20,539.89

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Solution

The fourth proportional to 27,625.77, 38,147.91 and 20,539.89 is: 28,363.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,625.77 : 38,147.91 = 20,539.89 : x
  2. Step 2: Convert to fraction form
    27,625.77/38,147.91 = 20,539.89/x
  3. Step 3: Cross multiply
    27,625.77x = 38,147.91 × 20,539.89
  4. Step 4: Simplify right side
    27,625.77x = 783,553,875.13
  5. Step 5: Solve for x
    x = 783,553,875.13/27,625.77
  6. Step 6: Final answer
    x = 28,363.15

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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.