Home / 21,988.60-32,945.10-10,277.80

Finding the Fourth Proportional to 21,988.60, 32,945.10 and 10,277.80

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Solution

The fourth proportional to 21,988.60, 32,945.10 and 10,277.80 is: 15,399.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,988.60 : 32,945.10 = 10,277.80 : x
  2. Step 2: Convert to fraction form
    21,988.60/32,945.10 = 10,277.80/x
  3. Step 3: Cross multiply
    21,988.60x = 32,945.10 × 10,277.80
  4. Step 4: Simplify right side
    21,988.60x = 338,603,148.78
  5. Step 5: Solve for x
    x = 338,603,148.78/21,988.60
  6. Step 6: Final answer
    x = 15,399.03

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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.