Home / 28,218.34-42,329.60-9,498.30

Finding the Fourth Proportional to 28,218.34, 42,329.60 and 9,498.30

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Solution

The fourth proportional to 28,218.34, 42,329.60 and 9,498.30 is: 14,248.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,218.34 : 42,329.60 = 9,498.30 : x
  2. Step 2: Convert to fraction form
    28,218.34/42,329.60 = 9,498.30/x
  3. Step 3: Cross multiply
    28,218.34x = 42,329.60 × 9,498.30
  4. Step 4: Simplify right side
    28,218.34x = 402,059,239.68
  5. Step 5: Solve for x
    x = 402,059,239.68/28,218.34
  6. Step 6: Final answer
    x = 14,248.15

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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.