Home / 25,739.90-38,569.98-17,857.73

Finding the Fourth Proportional to 25,739.90, 38,569.98 and 17,857.73

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Solution

The fourth proportional to 25,739.90, 38,569.98 and 17,857.73 is: 26,758.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,739.90 : 38,569.98 = 17,857.73 : x
  2. Step 2: Convert to fraction form
    25,739.90/38,569.98 = 17,857.73/x
  3. Step 3: Cross multiply
    25,739.90x = 38,569.98 × 17,857.73
  4. Step 4: Simplify right side
    25,739.90x = 688,772,288.95
  5. Step 5: Solve for x
    x = 688,772,288.95/25,739.90
  6. Step 6: Final answer
    x = 26,758.93

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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.