Home / 34,228.79-47,235.20-19,121.66

Finding the Fourth Proportional to 34,228.79, 47,235.20 and 19,121.66

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Solution

The fourth proportional to 34,228.79, 47,235.20 and 19,121.66 is: 26,387.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,228.79 : 47,235.20 = 19,121.66 : x
  2. Step 2: Convert to fraction form
    34,228.79/47,235.20 = 19,121.66/x
  3. Step 3: Cross multiply
    34,228.79x = 47,235.20 × 19,121.66
  4. Step 4: Simplify right side
    34,228.79x = 903,215,600.32
  5. Step 5: Solve for x
    x = 903,215,600.32/34,228.79
  6. Step 6: Final answer
    x = 26,387.60

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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.