Home / 33,139.49-45,731.12-18,032.21

Finding the Fourth Proportional to 33,139.49, 45,731.12 and 18,032.21

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Solution

The fourth proportional to 33,139.49, 45,731.12 and 18,032.21 is: 24,883.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,139.49 : 45,731.12 = 18,032.21 : x
  2. Step 2: Convert to fraction form
    33,139.49/45,731.12 = 18,032.21/x
  3. Step 3: Cross multiply
    33,139.49x = 45,731.12 × 18,032.21
  4. Step 4: Simplify right side
    33,139.49x = 824,633,159.38
  5. Step 5: Solve for x
    x = 824,633,159.38/33,139.49
  6. Step 6: Final answer
    x = 24,883.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.