Home / 34,071.68-47,018.31-18,963.90

Finding the Fourth Proportional to 34,071.68, 47,018.31 and 18,963.90

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Solution

The fourth proportional to 34,071.68, 47,018.31 and 18,963.90 is: 26,169.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,071.68 : 47,018.31 = 18,963.90 : x
  2. Step 2: Convert to fraction form
    34,071.68/47,018.31 = 18,963.90/x
  3. Step 3: Cross multiply
    34,071.68x = 47,018.31 × 18,963.90
  4. Step 4: Simplify right side
    34,071.68x = 891,650,529.01
  5. Step 5: Solve for x
    x = 891,650,529.01/34,071.68
  6. Step 6: Final answer
    x = 26,169.85

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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.