Home / 44,011.12-66,012-12,420.40

Finding the Fourth Proportional to 44,011.12, 66,012 and 12,420.40

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Solution

The fourth proportional to 44,011.12, 66,012 and 12,420.40 is: 18,629.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,011.12 : 66,012 = 12,420.40 : x
  2. Step 2: Convert to fraction form
    44,011.12/66,012 = 12,420.40/x
  3. Step 3: Cross multiply
    44,011.12x = 66,012 × 12,420.40
  4. Step 4: Simplify right side
    44,011.12x = 819,895,444.80
  5. Step 5: Solve for x
    x = 819,895,444.80/44,011.12
  6. Step 6: Final answer
    x = 18,629.28

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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.