Home / 20,287,242.12-27,999,264.78-12,554,774.76

Finding the Fourth Proportional to 20,287,242.12, 27,999,264.78 and 12,554,774.76

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Solution

The fourth proportional to 20,287,242.12, 27,999,264.78 and 12,554,774.76 is: 17,327,365.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,287,242.12 : 27,999,264.78 = 12,554,774.76 : x
  2. Step 2: Convert to fraction form
    20,287,242.12/27,999,264.78 = 12,554,774.76/x
  3. Step 3: Cross multiply
    20,287,242.12x = 27,999,264.78 × 12,554,774.76
  4. Step 4: Simplify right side
    20,287,242.12x = 351,524,462,758,500.94
  5. Step 5: Solve for x
    x = 351,524,462,758,500.94/20,287,242.12
  6. Step 6: Final answer
    x = 17,327,365.68

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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.