Home / 31,360.26-47,036.34-7,985.28

Finding the Fourth Proportional to 31,360.26, 47,036.34 and 7,985.28

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Solution

The fourth proportional to 31,360.26, 47,036.34 and 7,985.28 is: 11,976.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,360.26 : 47,036.34 = 7,985.28 : x
  2. Step 2: Convert to fraction form
    31,360.26/47,036.34 = 7,985.28/x
  3. Step 3: Cross multiply
    31,360.26x = 47,036.34 × 7,985.28
  4. Step 4: Simplify right side
    31,360.26x = 375,598,345.08
  5. Step 5: Solve for x
    x = 375,598,345.08/31,360.26
  6. Step 6: Final answer
    x = 11,976.89

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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.