Home / 28,301.38-39,082.63-18,247.86

Finding the Fourth Proportional to 28,301.38, 39,082.63 and 18,247.86

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Solution

The fourth proportional to 28,301.38, 39,082.63 and 18,247.86 is: 25,199.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,301.38 : 39,082.63 = 18,247.86 : x
  2. Step 2: Convert to fraction form
    28,301.38/39,082.63 = 18,247.86/x
  3. Step 3: Cross multiply
    28,301.38x = 39,082.63 × 18,247.86
  4. Step 4: Simplify right side
    28,301.38x = 713,174,360.67
  5. Step 5: Solve for x
    x = 713,174,360.67/28,301.38
  6. Step 6: Final answer
    x = 25,199.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.