Home / 40,883.54-61,281.56-21,142.22

Finding the Fourth Proportional to 40,883.54, 61,281.56 and 21,142.22

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Solution

The fourth proportional to 40,883.54, 61,281.56 and 21,142.22 is: 31,690.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,883.54 : 61,281.56 = 21,142.22 : x
  2. Step 2: Convert to fraction form
    40,883.54/61,281.56 = 21,142.22/x
  3. Step 3: Cross multiply
    40,883.54x = 61,281.56 × 21,142.22
  4. Step 4: Simplify right side
    40,883.54x = 1,295,627,969.91
  5. Step 5: Solve for x
    x = 1,295,627,969.91/40,883.54
  6. Step 6: Final answer
    x = 31,690.70

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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.