Home / 40,386.48-60,581.76-15,428.70

Finding the Fourth Proportional to 40,386.48, 60,581.76 and 15,428.70

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Solution

The fourth proportional to 40,386.48, 60,581.76 and 15,428.70 is: 23,143.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,386.48 : 60,581.76 = 15,428.70 : x
  2. Step 2: Convert to fraction form
    40,386.48/60,581.76 = 15,428.70/x
  3. Step 3: Cross multiply
    40,386.48x = 60,581.76 × 15,428.70
  4. Step 4: Simplify right side
    40,386.48x = 934,697,800.51
  5. Step 5: Solve for x
    x = 934,697,800.51/40,386.48
  6. Step 6: Final answer
    x = 23,143.83

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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.