Home / 30,799.71-42,503.67-16,652.61

Finding the Fourth Proportional to 30,799.71, 42,503.67 and 16,652.61

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Solution

The fourth proportional to 30,799.71, 42,503.67 and 16,652.61 is: 22,980.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,799.71 : 42,503.67 = 16,652.61 : x
  2. Step 2: Convert to fraction form
    30,799.71/42,503.67 = 16,652.61/x
  3. Step 3: Cross multiply
    30,799.71x = 42,503.67 × 16,652.61
  4. Step 4: Simplify right side
    30,799.71x = 707,797,040.08
  5. Step 5: Solve for x
    x = 707,797,040.08/30,799.71
  6. Step 6: Final answer
    x = 22,980.64

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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.