Home / 18,281.60-25,210.94-15,449.04

Finding the Fourth Proportional to 18,281.60, 25,210.94 and 15,449.04

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Solution

The fourth proportional to 18,281.60, 25,210.94 and 15,449.04 is: 21,304.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,281.60 : 25,210.94 = 15,449.04 : x
  2. Step 2: Convert to fraction form
    18,281.60/25,210.94 = 15,449.04/x
  3. Step 3: Cross multiply
    18,281.60x = 25,210.94 × 15,449.04
  4. Step 4: Simplify right side
    18,281.60x = 389,484,820.50
  5. Step 5: Solve for x
    x = 389,484,820.50/18,281.60
  6. Step 6: Final answer
    x = 21,304.74

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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.