Home / 28,221.18-42,332.37-9,501.78

Finding the Fourth Proportional to 28,221.18, 42,332.37 and 9,501.78

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Solution

The fourth proportional to 28,221.18, 42,332.37 and 9,501.78 is: 14,252.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,221.18 : 42,332.37 = 9,501.78 : x
  2. Step 2: Convert to fraction form
    28,221.18/42,332.37 = 9,501.78/x
  3. Step 3: Cross multiply
    28,221.18x = 42,332.37 × 9,501.78
  4. Step 4: Simplify right side
    28,221.18x = 402,232,866.62
  5. Step 5: Solve for x
    x = 402,232,866.62/28,221.18
  6. Step 6: Final answer
    x = 14,252.87

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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.