Home / 28,084.60-38,756.84-15,337.90

Finding the Fourth Proportional to 28,084.60, 38,756.84 and 15,337.90

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Solution

The fourth proportional to 28,084.60, 38,756.84 and 15,337.90 is: 21,166.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,084.60 : 38,756.84 = 15,337.90 : x
  2. Step 2: Convert to fraction form
    28,084.60/38,756.84 = 15,337.90/x
  3. Step 3: Cross multiply
    28,084.60x = 38,756.84 × 15,337.90
  4. Step 4: Simplify right side
    28,084.60x = 594,448,536.24
  5. Step 5: Solve for x
    x = 594,448,536.24/28,084.60
  6. Step 6: Final answer
    x = 21,166.35

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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.