Home / 20,627.04-28,454.88-13,060.80

Finding the Fourth Proportional to 20,627.04, 28,454.88 and 13,060.80

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Solution

The fourth proportional to 20,627.04, 28,454.88 and 13,060.80 is: 18,017.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,627.04 : 28,454.88 = 13,060.80 : x
  2. Step 2: Convert to fraction form
    20,627.04/28,454.88 = 13,060.80/x
  3. Step 3: Cross multiply
    20,627.04x = 28,454.88 × 13,060.80
  4. Step 4: Simplify right side
    20,627.04x = 371,643,496.70
  5. Step 5: Solve for x
    x = 371,643,496.70/20,627.04
  6. Step 6: Final answer
    x = 18,017.30

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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.