Home / 39,247.74-54,162.36-21,343.19

Finding the Fourth Proportional to 39,247.74, 54,162.36 and 21,343.19

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Solution

The fourth proportional to 39,247.74, 54,162.36 and 21,343.19 is: 29,453.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,247.74 : 54,162.36 = 21,343.19 : x
  2. Step 2: Convert to fraction form
    39,247.74/54,162.36 = 21,343.19/x
  3. Step 3: Cross multiply
    39,247.74x = 54,162.36 × 21,343.19
  4. Step 4: Simplify right side
    39,247.74x = 1,155,997,433.61
  5. Step 5: Solve for x
    x = 1,155,997,433.61/39,247.74
  6. Step 6: Final answer
    x = 29,453.86

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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.