Home / 21,426.81-32,146.11-8,952.68

Finding the Fourth Proportional to 21,426.81, 32,146.11 and 8,952.68

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Solution

The fourth proportional to 21,426.81, 32,146.11 and 8,952.68 is: 13,431.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,426.81 : 32,146.11 = 8,952.68 : x
  2. Step 2: Convert to fraction form
    21,426.81/32,146.11 = 8,952.68/x
  3. Step 3: Cross multiply
    21,426.81x = 32,146.11 × 8,952.68
  4. Step 4: Simplify right side
    21,426.81x = 287,793,675.34
  5. Step 5: Solve for x
    x = 287,793,675.34/21,426.81
  6. Step 6: Final answer
    x = 13,431.48

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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.