Home / 22,710.14-31,341.47-12,638.55

Finding the Fourth Proportional to 22,710.14, 31,341.47 and 12,638.55

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Solution

The fourth proportional to 22,710.14, 31,341.47 and 12,638.55 is: 17,442.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,710.14 : 31,341.47 = 12,638.55 : x
  2. Step 2: Convert to fraction form
    22,710.14/31,341.47 = 12,638.55/x
  3. Step 3: Cross multiply
    22,710.14x = 31,341.47 × 12,638.55
  4. Step 4: Simplify right side
    22,710.14x = 396,110,869.00
  5. Step 5: Solve for x
    x = 396,110,869.00/22,710.14
  6. Step 6: Final answer
    x = 17,442.02

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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.