Home / 39,718.42-59,587.65-18,654.57

Finding the Fourth Proportional to 39,718.42, 59,587.65 and 18,654.57

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Solution

The fourth proportional to 39,718.42, 59,587.65 and 18,654.57 is: 27,986.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,718.42 : 59,587.65 = 18,654.57 : x
  2. Step 2: Convert to fraction form
    39,718.42/59,587.65 = 18,654.57/x
  3. Step 3: Cross multiply
    39,718.42x = 59,587.65 × 18,654.57
  4. Step 4: Simplify right side
    39,718.42x = 1,111,581,988.06
  5. Step 5: Solve for x
    x = 1,111,581,988.06/39,718.42
  6. Step 6: Final answer
    x = 27,986.56

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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.