Home / 40,579.76-60,862.35-18,389

Finding the Fourth Proportional to 40,579.76, 60,862.35 and 18,389

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Solution

The fourth proportional to 40,579.76, 60,862.35 and 18,389 is: 27,580.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,579.76 : 60,862.35 = 18,389 : x
  2. Step 2: Convert to fraction form
    40,579.76/60,862.35 = 18,389/x
  3. Step 3: Cross multiply
    40,579.76x = 60,862.35 × 18,389
  4. Step 4: Simplify right side
    40,579.76x = 1,119,197,754.15
  5. Step 5: Solve for x
    x = 1,119,197,754.15/40,579.76
  6. Step 6: Final answer
    x = 27,580.20

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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.