Home / 31,511.90-47,223.30-17,478.11

Finding the Fourth Proportional to 31,511.90, 47,223.30 and 17,478.11

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Solution

The fourth proportional to 31,511.90, 47,223.30 and 17,478.11 is: 26,192.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,511.90 : 47,223.30 = 17,478.11 : x
  2. Step 2: Convert to fraction form
    31,511.90/47,223.30 = 17,478.11/x
  3. Step 3: Cross multiply
    31,511.90x = 47,223.30 × 17,478.11
  4. Step 4: Simplify right side
    31,511.90x = 825,374,031.96
  5. Step 5: Solve for x
    x = 825,374,031.96/31,511.90
  6. Step 6: Final answer
    x = 26,192.46

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1.5x scale

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.