Home / 52,380.79-72,285.53-28,507.63

Finding the Fourth Proportional to 52,380.79, 72,285.53 and 28,507.63

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Solution

The fourth proportional to 52,380.79, 72,285.53 and 28,507.63 is: 39,340.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,380.79 : 72,285.53 = 28,507.63 : x
  2. Step 2: Convert to fraction form
    52,380.79/72,285.53 = 28,507.63/x
  3. Step 3: Cross multiply
    52,380.79x = 72,285.53 × 28,507.63
  4. Step 4: Simplify right side
    52,380.79x = 2,060,689,143.59
  5. Step 5: Solve for x
    x = 2,060,689,143.59/52,380.79
  6. Step 6: Final answer
    x = 39,340.55

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Double scale
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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.