Home / 27,111.60-40,666.20-7,390.16

Finding the Fourth Proportional to 27,111.60, 40,666.20 and 7,390.16

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Solution

The fourth proportional to 27,111.60, 40,666.20 and 7,390.16 is: 11,084.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,111.60 : 40,666.20 = 7,390.16 : x
  2. Step 2: Convert to fraction form
    27,111.60/40,666.20 = 7,390.16/x
  3. Step 3: Cross multiply
    27,111.60x = 40,666.20 × 7,390.16
  4. Step 4: Simplify right side
    27,111.60x = 300,529,521.26
  5. Step 5: Solve for x
    x = 300,529,521.26/27,111.60
  6. Step 6: Final answer
    x = 11,084.91

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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.