Home / 28,330.38-39,104.16-18,898.92

Finding the Fourth Proportional to 28,330.38, 39,104.16 and 18,898.92

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Solution

The fourth proportional to 28,330.38, 39,104.16 and 18,898.92 is: 26,086.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,330.38 : 39,104.16 = 18,898.92 : x
  2. Step 2: Convert to fraction form
    28,330.38/39,104.16 = 18,898.92/x
  3. Step 3: Cross multiply
    28,330.38x = 39,104.16 × 18,898.92
  4. Step 4: Simplify right side
    28,330.38x = 739,026,391.51
  5. Step 5: Solve for x
    x = 739,026,391.51/28,330.38
  6. Step 6: Final answer
    x = 26,086.00

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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.