Home / 35,247.12-48,641.09-20,139.74

Finding the Fourth Proportional to 35,247.12, 48,641.09 and 20,139.74

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Solution

The fourth proportional to 35,247.12, 48,641.09 and 20,139.74 is: 27,792.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,247.12 : 48,641.09 = 20,139.74 : x
  2. Step 2: Convert to fraction form
    35,247.12/48,641.09 = 20,139.74/x
  3. Step 3: Cross multiply
    35,247.12x = 48,641.09 × 20,139.74
  4. Step 4: Simplify right side
    35,247.12x = 979,618,713.06
  5. Step 5: Solve for x
    x = 979,618,713.06/35,247.12
  6. Step 6: Final answer
    x = 27,792.87

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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.