Home / 39,437.64-54,423.60-21,532.56

Finding the Fourth Proportional to 39,437.64, 54,423.60 and 21,532.56

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Solution

The fourth proportional to 39,437.64, 54,423.60 and 21,532.56 is: 29,714.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,437.64 : 54,423.60 = 21,532.56 : x
  2. Step 2: Convert to fraction form
    39,437.64/54,423.60 = 21,532.56/x
  3. Step 3: Cross multiply
    39,437.64x = 54,423.60 × 21,532.56
  4. Step 4: Simplify right side
    39,437.64x = 1,171,879,432.42
  5. Step 5: Solve for x
    x = 1,171,879,432.42/39,437.64
  6. Step 6: Final answer
    x = 29,714.75

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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.