Home / 22,710.52-31,341.99-12,638.93

Finding the Fourth Proportional to 22,710.52, 31,341.99 and 12,638.93

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Solution

The fourth proportional to 22,710.52, 31,341.99 and 12,638.93 is: 17,442.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,710.52 : 31,341.99 = 12,638.93 : x
  2. Step 2: Convert to fraction form
    22,710.52/31,341.99 = 12,638.93/x
  3. Step 3: Cross multiply
    22,710.52x = 31,341.99 × 12,638.93
  4. Step 4: Simplify right side
    22,710.52x = 396,129,107.72
  5. Step 5: Solve for x
    x = 396,129,107.72/22,710.52
  6. Step 6: Final answer
    x = 17,442.54

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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.