Home / 31,744.80-47,621.56-10,686.48

Finding the Fourth Proportional to 31,744.80, 47,621.56 and 10,686.48

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Solution

The fourth proportional to 31,744.80, 47,621.56 and 10,686.48 is: 16,031.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,744.80 : 47,621.56 = 10,686.48 : x
  2. Step 2: Convert to fraction form
    31,744.80/47,621.56 = 10,686.48/x
  3. Step 3: Cross multiply
    31,744.80x = 47,621.56 × 10,686.48
  4. Step 4: Simplify right side
    31,744.80x = 508,906,848.51
  5. Step 5: Solve for x
    x = 508,906,848.51/31,744.80
  6. Step 6: Final answer
    x = 16,031.19

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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.