Home / 31,458.40-47,184.32-10,681.36

Finding the Fourth Proportional to 31,458.40, 47,184.32 and 10,681.36

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Solution

The fourth proportional to 31,458.40, 47,184.32 and 10,681.36 is: 16,020.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,458.40 : 47,184.32 = 10,681.36 : x
  2. Step 2: Convert to fraction form
    31,458.40/47,184.32 = 10,681.36/x
  3. Step 3: Cross multiply
    31,458.40x = 47,184.32 × 10,681.36
  4. Step 4: Simplify right side
    31,458.40x = 503,992,708.28
  5. Step 5: Solve for x
    x = 503,992,708.28/31,458.40
  6. Step 6: Final answer
    x = 16,020.93

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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.