Home / 42,141.60-63,203.85-15,478.44

Finding the Fourth Proportional to 42,141.60, 63,203.85 and 15,478.44

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Solution

The fourth proportional to 42,141.60, 63,203.85 and 15,478.44 is: 23,214.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,141.60 : 63,203.85 = 15,478.44 : x
  2. Step 2: Convert to fraction form
    42,141.60/63,203.85 = 15,478.44/x
  3. Step 3: Cross multiply
    42,141.60x = 63,203.85 × 15,478.44
  4. Step 4: Simplify right side
    42,141.60x = 978,296,999.99
  5. Step 5: Solve for x
    x = 978,296,999.99/42,141.60
  6. Step 6: Final answer
    x = 23,214.52

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1.5x scale

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.