Home / 42,480.48-63,716.60-12,898.57

Finding the Fourth Proportional to 42,480.48, 63,716.60 and 12,898.57

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Solution

The fourth proportional to 42,480.48, 63,716.60 and 12,898.57 is: 19,346.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,480.48 : 63,716.60 = 12,898.57 : x
  2. Step 2: Convert to fraction form
    42,480.48/63,716.60 = 12,898.57/x
  3. Step 3: Cross multiply
    42,480.48x = 63,716.60 × 12,898.57
  4. Step 4: Simplify right side
    42,480.48x = 821,852,801.48
  5. Step 5: Solve for x
    x = 821,852,801.48/42,480.48
  6. Step 6: Final answer
    x = 19,346.60

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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.