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Finding the Fourth Proportional to 57,339.76, 86,024.46 and 21,801.76

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Solution

The fourth proportional to 57,339.76, 86,024.46 and 21,801.76 is: 32,708.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,339.76 : 86,024.46 = 21,801.76 : x
  2. Step 2: Convert to fraction form
    57,339.76/86,024.46 = 21,801.76/x
  3. Step 3: Cross multiply
    57,339.76x = 86,024.46 × 21,801.76
  4. Step 4: Simplify right side
    57,339.76x = 1,875,484,631.05
  5. Step 5: Solve for x
    x = 1,875,484,631.05/57,339.76
  6. Step 6: Final answer
    x = 32,708.27

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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.