Home / 20,446.02-28,212.30-12,488.58

Finding the Fourth Proportional to 20,446.02, 28,212.30 and 12,488.58

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Solution

The fourth proportional to 20,446.02, 28,212.30 and 12,488.58 is: 17,232.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,446.02 : 28,212.30 = 12,488.58 : x
  2. Step 2: Convert to fraction form
    20,446.02/28,212.30 = 12,488.58/x
  3. Step 3: Cross multiply
    20,446.02x = 28,212.30 × 12,488.58
  4. Step 4: Simplify right side
    20,446.02x = 352,331,565.53
  5. Step 5: Solve for x
    x = 352,331,565.53/20,446.02
  6. Step 6: Final answer
    x = 17,232.28

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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.