Home / 30,799.92-42,503.40-17,371.20

Finding the Fourth Proportional to 30,799.92, 42,503.40 and 17,371.20

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Solution

The fourth proportional to 30,799.92, 42,503.40 and 17,371.20 is: 23,971.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,799.92 : 42,503.40 = 17,371.20 : x
  2. Step 2: Convert to fraction form
    30,799.92/42,503.40 = 17,371.20/x
  3. Step 3: Cross multiply
    30,799.92x = 42,503.40 × 17,371.20
  4. Step 4: Simplify right side
    30,799.92x = 738,335,062.08
  5. Step 5: Solve for x
    x = 738,335,062.08/30,799.92
  6. Step 6: Final answer
    x = 23,971.98

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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.