Home / 42,650.52-63,975.78-21,860.76

Finding the Fourth Proportional to 42,650.52, 63,975.78 and 21,860.76

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Solution

The fourth proportional to 42,650.52, 63,975.78 and 21,860.76 is: 32,791.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,650.52 : 63,975.78 = 21,860.76 : x
  2. Step 2: Convert to fraction form
    42,650.52/63,975.78 = 21,860.76/x
  3. Step 3: Cross multiply
    42,650.52x = 63,975.78 × 21,860.76
  4. Step 4: Simplify right side
    42,650.52x = 1,398,559,172.39
  5. Step 5: Solve for x
    x = 1,398,559,172.39/42,650.52
  6. Step 6: Final answer
    x = 32,791.14

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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.