Home / 21,031.32-31,550.28-6,242.52

Finding the Fourth Proportional to 21,031.32, 31,550.28 and 6,242.52

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Solution

The fourth proportional to 21,031.32, 31,550.28 and 6,242.52 is: 9,364.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,031.32 : 31,550.28 = 6,242.52 : x
  2. Step 2: Convert to fraction form
    21,031.32/31,550.28 = 6,242.52/x
  3. Step 3: Cross multiply
    21,031.32x = 31,550.28 × 6,242.52
  4. Step 4: Simplify right side
    21,031.32x = 196,953,253.91
  5. Step 5: Solve for x
    x = 196,953,253.91/21,031.32
  6. Step 6: Final answer
    x = 9,364.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.