Home / 28,743.24-39,626.10-19,666.92

Finding the Fourth Proportional to 28,743.24, 39,626.10 and 19,666.92

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Solution

The fourth proportional to 28,743.24, 39,626.10 and 19,666.92 is: 27,113.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,743.24 : 39,626.10 = 19,666.92 : x
  2. Step 2: Convert to fraction form
    28,743.24/39,626.10 = 19,666.92/x
  3. Step 3: Cross multiply
    28,743.24x = 39,626.10 × 19,666.92
  4. Step 4: Simplify right side
    28,743.24x = 779,323,338.61
  5. Step 5: Solve for x
    x = 779,323,338.61/28,743.24
  6. Step 6: Final answer
    x = 27,113.27

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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.