Home / 21,959.11-32,938.71-10,280.53

Finding the Fourth Proportional to 21,959.11, 32,938.71 and 10,280.53

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Solution

The fourth proportional to 21,959.11, 32,938.71 and 10,280.53 is: 15,420.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,959.11 : 32,938.71 = 10,280.53 : x
  2. Step 2: Convert to fraction form
    21,959.11/32,938.71 = 10,280.53/x
  3. Step 3: Cross multiply
    21,959.11x = 32,938.71 × 10,280.53
  4. Step 4: Simplify right side
    21,959.11x = 338,627,396.32
  5. Step 5: Solve for x
    x = 338,627,396.32/21,959.11
  6. Step 6: Final answer
    x = 15,420.82

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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.