Home / 31,668.36-47,507.40-10,887

Finding the Fourth Proportional to 31,668.36, 47,507.40 and 10,887

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Solution

The fourth proportional to 31,668.36, 47,507.40 and 10,887 is: 16,332.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,668.36 : 47,507.40 = 10,887 : x
  2. Step 2: Convert to fraction form
    31,668.36/47,507.40 = 10,887/x
  3. Step 3: Cross multiply
    31,668.36x = 47,507.40 × 10,887
  4. Step 4: Simplify right side
    31,668.36x = 517,213,063.80
  5. Step 5: Solve for x
    x = 517,213,063.80/31,668.36
  6. Step 6: Final answer
    x = 16,332.17

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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.