Home / 20,585.06-30,877.52-7,437.42

Finding the Fourth Proportional to 20,585.06, 30,877.52 and 7,437.42

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Solution

The fourth proportional to 20,585.06, 30,877.52 and 7,437.42 is: 11,156.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,585.06 : 30,877.52 = 7,437.42 : x
  2. Step 2: Convert to fraction form
    20,585.06/30,877.52 = 7,437.42/x
  3. Step 3: Cross multiply
    20,585.06x = 30,877.52 × 7,437.42
  4. Step 4: Simplify right side
    20,585.06x = 229,649,084.80
  5. Step 5: Solve for x
    x = 229,649,084.80/20,585.06
  6. Step 6: Final answer
    x = 11,156.10

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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.