Home / 31,536.80-47,240.40-15,963.20

Finding the Fourth Proportional to 31,536.80, 47,240.40 and 15,963.20

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Solution

The fourth proportional to 31,536.80, 47,240.40 and 15,963.20 is: 23,912.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,536.80 : 47,240.40 = 15,963.20 : x
  2. Step 2: Convert to fraction form
    31,536.80/47,240.40 = 15,963.20/x
  3. Step 3: Cross multiply
    31,536.80x = 47,240.40 × 15,963.20
  4. Step 4: Simplify right side
    31,536.80x = 754,107,953.28
  5. Step 5: Solve for x
    x = 754,107,953.28/31,536.80
  6. Step 6: Final answer
    x = 23,912.00

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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.