Home / 22,764.68-31,415.36-12,693.76

Finding the Fourth Proportional to 22,764.68, 31,415.36 and 12,693.76

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Solution

The fourth proportional to 22,764.68, 31,415.36 and 12,693.76 is: 17,517.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,764.68 : 31,415.36 = 12,693.76 : x
  2. Step 2: Convert to fraction form
    22,764.68/31,415.36 = 12,693.76/x
  3. Step 3: Cross multiply
    22,764.68x = 31,415.36 × 12,693.76
  4. Step 4: Simplify right side
    22,764.68x = 398,779,040.15
  5. Step 5: Solve for x
    x = 398,779,040.15/22,764.68
  6. Step 6: Final answer
    x = 17,517.45

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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.