Home / 28,675.24-42,964.31-17,558.72

Finding the Fourth Proportional to 28,675.24, 42,964.31 and 17,558.72

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Solution

The fourth proportional to 28,675.24, 42,964.31 and 17,558.72 is: 26,308.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,675.24 : 42,964.31 = 17,558.72 : x
  2. Step 2: Convert to fraction form
    28,675.24/42,964.31 = 17,558.72/x
  3. Step 3: Cross multiply
    28,675.24x = 42,964.31 × 17,558.72
  4. Step 4: Simplify right side
    28,675.24x = 754,398,289.28
  5. Step 5: Solve for x
    x = 754,398,289.28/28,675.24
  6. Step 6: Final answer
    x = 26,308.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.