Home / 27,287.81-40,931.67-8,569.30

Finding the Fourth Proportional to 27,287.81, 40,931.67 and 8,569.30

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Solution

The fourth proportional to 27,287.81, 40,931.67 and 8,569.30 is: 12,853.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,287.81 : 40,931.67 = 8,569.30 : x
  2. Step 2: Convert to fraction form
    27,287.81/40,931.67 = 8,569.30/x
  3. Step 3: Cross multiply
    27,287.81x = 40,931.67 × 8,569.30
  4. Step 4: Simplify right side
    27,287.81x = 350,755,657.40
  5. Step 5: Solve for x
    x = 350,755,657.40/27,287.81
  6. Step 6: Final answer
    x = 12,853.93

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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.