Home / 40,681.64-61,031.68-21,961.33

Finding the Fourth Proportional to 40,681.64, 61,031.68 and 21,961.33

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Solution

The fourth proportional to 40,681.64, 61,031.68 and 21,961.33 is: 32,946.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,681.64 : 61,031.68 = 21,961.33 : x
  2. Step 2: Convert to fraction form
    40,681.64/61,031.68 = 21,961.33/x
  3. Step 3: Cross multiply
    40,681.64x = 61,031.68 × 21,961.33
  4. Step 4: Simplify right side
    40,681.64x = 1,340,336,657.45
  5. Step 5: Solve for x
    x = 1,340,336,657.45/40,681.64
  6. Step 6: Final answer
    x = 32,946.97

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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.