Home / 21,434.20-32,160.90-9,741.40

Finding the Fourth Proportional to 21,434.20, 32,160.90 and 9,741.40

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Solution

The fourth proportional to 21,434.20, 32,160.90 and 9,741.40 is: 14,616.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,434.20 : 32,160.90 = 9,741.40 : x
  2. Step 2: Convert to fraction form
    21,434.20/32,160.90 = 9,741.40/x
  3. Step 3: Cross multiply
    21,434.20x = 32,160.90 × 9,741.40
  4. Step 4: Simplify right side
    21,434.20x = 313,292,191.26
  5. Step 5: Solve for x
    x = 313,292,191.26/21,434.20
  6. Step 6: Final answer
    x = 14,616.46

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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.