Home / 30,632.22-42,281.64-17,888.85

Finding the Fourth Proportional to 30,632.22, 42,281.64 and 17,888.85

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Solution

The fourth proportional to 30,632.22, 42,281.64 and 17,888.85 is: 24,691.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,632.22 : 42,281.64 = 17,888.85 : x
  2. Step 2: Convert to fraction form
    30,632.22/42,281.64 = 17,888.85/x
  3. Step 3: Cross multiply
    30,632.22x = 42,281.64 × 17,888.85
  4. Step 4: Simplify right side
    30,632.22x = 756,369,915.71
  5. Step 5: Solve for x
    x = 756,369,915.71/30,632.22
  6. Step 6: Final answer
    x = 24,691.97

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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.