Home / 21,431.49-32,167.96-10,345.97

Finding the Fourth Proportional to 21,431.49, 32,167.96 and 10,345.97

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Solution

The fourth proportional to 21,431.49, 32,167.96 and 10,345.97 is: 15,528.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,431.49 : 32,167.96 = 10,345.97 : x
  2. Step 2: Convert to fraction form
    21,431.49/32,167.96 = 10,345.97/x
  3. Step 3: Cross multiply
    21,431.49x = 32,167.96 × 10,345.97
  4. Step 4: Simplify right side
    21,431.49x = 332,808,588.28
  5. Step 5: Solve for x
    x = 332,808,588.28/21,431.49
  6. Step 6: Final answer
    x = 15,528.95

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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.