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Finding the Fourth Proportional to 25,865.84, 38,798.48 and 18,235.71

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Solution

The fourth proportional to 25,865.84, 38,798.48 and 18,235.71 is: 27,353.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,865.84 : 38,798.48 = 18,235.71 : x
  2. Step 2: Convert to fraction form
    25,865.84/38,798.48 = 18,235.71/x
  3. Step 3: Cross multiply
    25,865.84x = 38,798.48 × 18,235.71
  4. Step 4: Simplify right side
    25,865.84x = 707,517,875.31
  5. Step 5: Solve for x
    x = 707,517,875.31/25,865.84
  6. Step 6: Final answer
    x = 27,353.37

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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.