Home / 31,381.51-47,036.66-15,566.76

Finding the Fourth Proportional to 31,381.51, 47,036.66 and 15,566.76

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Solution

The fourth proportional to 31,381.51, 47,036.66 and 15,566.76 is: 23,332.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,381.51 : 47,036.66 = 15,566.76 : x
  2. Step 2: Convert to fraction form
    31,381.51/47,036.66 = 15,566.76/x
  3. Step 3: Cross multiply
    31,381.51x = 47,036.66 × 15,566.76
  4. Step 4: Simplify right side
    31,381.51x = 732,208,436.34
  5. Step 5: Solve for x
    x = 732,208,436.34/31,381.51
  6. Step 6: Final answer
    x = 23,332.48

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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.