Home / 28,358.56-39,143.42-16,424.83

Finding the Fourth Proportional to 28,358.56, 39,143.42 and 16,424.83

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Solution

The fourth proportional to 28,358.56, 39,143.42 and 16,424.83 is: 22,671.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,358.56 : 39,143.42 = 16,424.83 : x
  2. Step 2: Convert to fraction form
    28,358.56/39,143.42 = 16,424.83/x
  3. Step 3: Cross multiply
    28,358.56x = 39,143.42 × 16,424.83
  4. Step 4: Simplify right side
    28,358.56x = 642,924,019.12
  5. Step 5: Solve for x
    x = 642,924,019.12/28,358.56
  6. Step 6: Final answer
    x = 22,671.25

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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.