Home / 28,785.66-39,742.56-22,058.88

Finding the Fourth Proportional to 28,785.66, 39,742.56 and 22,058.88

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Solution

The fourth proportional to 28,785.66, 39,742.56 and 22,058.88 is: 30,455.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,785.66 : 39,742.56 = 22,058.88 : x
  2. Step 2: Convert to fraction form
    28,785.66/39,742.56 = 22,058.88/x
  3. Step 3: Cross multiply
    28,785.66x = 39,742.56 × 22,058.88
  4. Step 4: Simplify right side
    28,785.66x = 876,676,361.93
  5. Step 5: Solve for x
    x = 876,676,361.93/28,785.66
  6. Step 6: Final answer
    x = 30,455.32

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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.