Home / 22,702.86-31,328.24-12,631.05

Finding the Fourth Proportional to 22,702.86, 31,328.24 and 12,631.05

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Solution

The fourth proportional to 22,702.86, 31,328.24 and 12,631.05 is: 17,429.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,702.86 : 31,328.24 = 12,631.05 : x
  2. Step 2: Convert to fraction form
    22,702.86/31,328.24 = 12,631.05/x
  3. Step 3: Cross multiply
    22,702.86x = 31,328.24 × 12,631.05
  4. Step 4: Simplify right side
    22,702.86x = 395,708,502.70
  5. Step 5: Solve for x
    x = 395,708,502.70/22,702.86
  6. Step 6: Final answer
    x = 17,429.90

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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.