Home / 34,358.32-47,394.12-21,761.20

Finding the Fourth Proportional to 34,358.32, 47,394.12 and 21,761.20

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Solution

The fourth proportional to 34,358.32, 47,394.12 and 21,761.20 is: 30,017.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,358.32 : 47,394.12 = 21,761.20 : x
  2. Step 2: Convert to fraction form
    34,358.32/47,394.12 = 21,761.20/x
  3. Step 3: Cross multiply
    34,358.32x = 47,394.12 × 21,761.20
  4. Step 4: Simplify right side
    34,358.32x = 1,031,352,924.14
  5. Step 5: Solve for x
    x = 1,031,352,924.14/34,358.32
  6. Step 6: Final answer
    x = 30,017.56

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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.