Home / 34,155.75-47,126.88-20,726.68

Finding the Fourth Proportional to 34,155.75, 47,126.88 and 20,726.68

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Solution

The fourth proportional to 34,155.75, 47,126.88 and 20,726.68 is: 28,597.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,155.75 : 47,126.88 = 20,726.68 : x
  2. Step 2: Convert to fraction form
    34,155.75/47,126.88 = 20,726.68/x
  3. Step 3: Cross multiply
    34,155.75x = 47,126.88 × 20,726.68
  4. Step 4: Simplify right side
    34,155.75x = 976,783,761.16
  5. Step 5: Solve for x
    x = 976,783,761.16/34,155.75
  6. Step 6: Final answer
    x = 28,597.93

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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.