Home / 18,020.40-27,032.98-5,541.28

Finding the Fourth Proportional to 18,020.40, 27,032.98 and 5,541.28

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Solution

The fourth proportional to 18,020.40, 27,032.98 and 5,541.28 is: 8,312.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,020.40 : 27,032.98 = 5,541.28 : x
  2. Step 2: Convert to fraction form
    18,020.40/27,032.98 = 5,541.28/x
  3. Step 3: Cross multiply
    18,020.40x = 27,032.98 × 5,541.28
  4. Step 4: Simplify right side
    18,020.40x = 149,797,311.41
  5. Step 5: Solve for x
    x = 149,797,311.41/18,020.40
  6. Step 6: Final answer
    x = 8,312.65

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1.5x scale

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.