Home / 35,318.47-48,742.22-20,215.87

Finding the Fourth Proportional to 35,318.47, 48,742.22 and 20,215.87

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Solution

The fourth proportional to 35,318.47, 48,742.22 and 20,215.87 is: 27,899.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,318.47 : 48,742.22 = 20,215.87 : x
  2. Step 2: Convert to fraction form
    35,318.47/48,742.22 = 20,215.87/x
  3. Step 3: Cross multiply
    35,318.47x = 48,742.22 × 20,215.87
  4. Step 4: Simplify right side
    35,318.47x = 985,366,235.91
  5. Step 5: Solve for x
    x = 985,366,235.91/35,318.47
  6. Step 6: Final answer
    x = 27,899.46

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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.