Home / 55,432.47-83,156.94-20,369.40

Finding the Fourth Proportional to 55,432.47, 83,156.94 and 20,369.40

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Solution

The fourth proportional to 55,432.47, 83,156.94 and 20,369.40 is: 30,557.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,432.47 : 83,156.94 = 20,369.40 : x
  2. Step 2: Convert to fraction form
    55,432.47/83,156.94 = 20,369.40/x
  3. Step 3: Cross multiply
    55,432.47x = 83,156.94 × 20,369.40
  4. Step 4: Simplify right side
    55,432.47x = 1,693,856,973.64
  5. Step 5: Solve for x
    x = 1,693,856,973.64/55,432.47
  6. Step 6: Final answer
    x = 30,557.13

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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.