Home / 22,590.92-31,174.05-12,518.77

Finding the Fourth Proportional to 22,590.92, 31,174.05 and 12,518.77

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Solution

The fourth proportional to 22,590.92, 31,174.05 and 12,518.77 is: 17,275.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,590.92 : 31,174.05 = 12,518.77 : x
  2. Step 2: Convert to fraction form
    22,590.92/31,174.05 = 12,518.77/x
  3. Step 3: Cross multiply
    22,590.92x = 31,174.05 × 12,518.77
  4. Step 4: Simplify right side
    22,590.92x = 390,260,683.98
  5. Step 5: Solve for x
    x = 390,260,683.98/22,590.92
  6. Step 6: Final answer
    x = 17,275.12

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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.