Home / 28,528.76-42,793.26-18,730.04

Finding the Fourth Proportional to 28,528.76, 42,793.26 and 18,730.04

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Solution

The fourth proportional to 28,528.76, 42,793.26 and 18,730.04 is: 28,095.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,528.76 : 42,793.26 = 18,730.04 : x
  2. Step 2: Convert to fraction form
    28,528.76/42,793.26 = 18,730.04/x
  3. Step 3: Cross multiply
    28,528.76x = 42,793.26 × 18,730.04
  4. Step 4: Simplify right side
    28,528.76x = 801,519,471.53
  5. Step 5: Solve for x
    x = 801,519,471.53/28,528.76
  6. Step 6: Final answer
    x = 28,095.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.