Home / 30,046.85-45,070.28-18,966.05

Finding the Fourth Proportional to 30,046.85, 45,070.28 and 18,966.05

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Solution

The fourth proportional to 30,046.85, 45,070.28 and 18,966.05 is: 28,449.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,046.85 : 45,070.28 = 18,966.05 : x
  2. Step 2: Convert to fraction form
    30,046.85/45,070.28 = 18,966.05/x
  3. Step 3: Cross multiply
    30,046.85x = 45,070.28 × 18,966.05
  4. Step 4: Simplify right side
    30,046.85x = 854,805,089.16
  5. Step 5: Solve for x
    x = 854,805,089.16/30,046.85
  6. Step 6: Final answer
    x = 28,449.08

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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.