Home / 39,179.79-58,718.34-18,117.15

Finding the Fourth Proportional to 39,179.79, 58,718.34 and 18,117.15

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Solution

The fourth proportional to 39,179.79, 58,718.34 and 18,117.15 is: 27,151.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,179.79 : 58,718.34 = 18,117.15 : x
  2. Step 2: Convert to fraction form
    39,179.79/58,718.34 = 18,117.15/x
  3. Step 3: Cross multiply
    39,179.79x = 58,718.34 × 18,117.15
  4. Step 4: Simplify right side
    39,179.79x = 1,063,808,973.53
  5. Step 5: Solve for x
    x = 1,063,808,973.53/39,179.79
  6. Step 6: Final answer
    x = 27,151.99

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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.