Home / 31,756.62-47,623.80-13,031.25

Finding the Fourth Proportional to 31,756.62, 47,623.80 and 13,031.25

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Solution

The fourth proportional to 31,756.62, 47,623.80 and 13,031.25 is: 19,542.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,756.62 : 47,623.80 = 13,031.25 : x
  2. Step 2: Convert to fraction form
    31,756.62/47,623.80 = 13,031.25/x
  3. Step 3: Cross multiply
    31,756.62x = 47,623.80 × 13,031.25
  4. Step 4: Simplify right side
    31,756.62x = 620,597,643.75
  5. Step 5: Solve for x
    x = 620,597,643.75/31,756.62
  6. Step 6: Final answer
    x = 19,542.31

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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.