Home / 20,671.04-28,532.04-13,117.52

Finding the Fourth Proportional to 20,671.04, 28,532.04 and 13,117.52

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Solution

The fourth proportional to 20,671.04, 28,532.04 and 13,117.52 is: 18,105.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,671.04 : 28,532.04 = 13,117.52 : x
  2. Step 2: Convert to fraction form
    20,671.04/28,532.04 = 13,117.52/x
  3. Step 3: Cross multiply
    20,671.04x = 28,532.04 × 13,117.52
  4. Step 4: Simplify right side
    20,671.04x = 374,269,605.34
  5. Step 5: Solve for x
    x = 374,269,605.34/20,671.04
  6. Step 6: Final answer
    x = 18,105.99

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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.