Home / 34,156.16-47,139.82-20,726.64

Finding the Fourth Proportional to 34,156.16, 47,139.82 and 20,726.64

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Solution

The fourth proportional to 34,156.16, 47,139.82 and 20,726.64 is: 28,605.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,156.16 : 47,139.82 = 20,726.64 : x
  2. Step 2: Convert to fraction form
    34,156.16/47,139.82 = 20,726.64/x
  3. Step 3: Cross multiply
    34,156.16x = 47,139.82 × 20,726.64
  4. Step 4: Simplify right side
    34,156.16x = 977,050,078.80
  5. Step 5: Solve for x
    x = 977,050,078.80/34,156.16
  6. Step 6: Final answer
    x = 28,605.38

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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.