Home / 28,688.46-43,049.52-12,047.20

Finding the Fourth Proportional to 28,688.46, 43,049.52 and 12,047.20

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Solution

The fourth proportional to 28,688.46, 43,049.52 and 12,047.20 is: 18,077.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,688.46 : 43,049.52 = 12,047.20 : x
  2. Step 2: Convert to fraction form
    28,688.46/43,049.52 = 12,047.20/x
  3. Step 3: Cross multiply
    28,688.46x = 43,049.52 × 12,047.20
  4. Step 4: Simplify right side
    28,688.46x = 518,626,177.34
  5. Step 5: Solve for x
    x = 518,626,177.34/28,688.46
  6. Step 6: Final answer
    x = 18,077.87

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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.