Home / 28,964.79-39,957.30-18,888.66

Finding the Fourth Proportional to 28,964.79, 39,957.30 and 18,888.66

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Solution

The fourth proportional to 28,964.79, 39,957.30 and 18,888.66 is: 26,057.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,964.79 : 39,957.30 = 18,888.66 : x
  2. Step 2: Convert to fraction form
    28,964.79/39,957.30 = 18,888.66/x
  3. Step 3: Cross multiply
    28,964.79x = 39,957.30 × 18,888.66
  4. Step 4: Simplify right side
    28,964.79x = 754,739,854.22
  5. Step 5: Solve for x
    x = 754,739,854.22/28,964.79
  6. Step 6: Final answer
    x = 26,057.15

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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.