Home / 30,622.08-42,269.12-18,046

Finding the Fourth Proportional to 30,622.08, 42,269.12 and 18,046

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Solution

The fourth proportional to 30,622.08, 42,269.12 and 18,046 is: 24,909.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,622.08 : 42,269.12 = 18,046 : x
  2. Step 2: Convert to fraction form
    30,622.08/42,269.12 = 18,046/x
  3. Step 3: Cross multiply
    30,622.08x = 42,269.12 × 18,046
  4. Step 4: Simplify right side
    30,622.08x = 762,788,539.52
  5. Step 5: Solve for x
    x = 762,788,539.52/30,622.08
  6. Step 6: Final answer
    x = 24,909.76

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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.