Home / 42,895.90-64,350.06-13,316.14

Finding the Fourth Proportional to 42,895.90, 64,350.06 and 13,316.14

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Solution

The fourth proportional to 42,895.90, 64,350.06 and 13,316.14 is: 19,976.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,895.90 : 64,350.06 = 13,316.14 : x
  2. Step 2: Convert to fraction form
    42,895.90/64,350.06 = 13,316.14/x
  3. Step 3: Cross multiply
    42,895.90x = 64,350.06 × 13,316.14
  4. Step 4: Simplify right side
    42,895.90x = 856,894,407.97
  5. Step 5: Solve for x
    x = 856,894,407.97/42,895.90
  6. Step 6: Final answer
    x = 19,976.14

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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.