Home / 21,045.05-31,561.29-17,338.08

Finding the Fourth Proportional to 21,045.05, 31,561.29 and 17,338.08

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Solution

The fourth proportional to 21,045.05, 31,561.29 and 17,338.08 is: 26,001.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,045.05 : 31,561.29 = 17,338.08 : x
  2. Step 2: Convert to fraction form
    21,045.05/31,561.29 = 17,338.08/x
  3. Step 3: Cross multiply
    21,045.05x = 31,561.29 × 17,338.08
  4. Step 4: Simplify right side
    21,045.05x = 547,212,170.92
  5. Step 5: Solve for x
    x = 547,212,170.92/21,045.05
  6. Step 6: Final answer
    x = 26,001.95

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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.