Home / 25,871.61-38,808.28-20,244.09

Finding the Fourth Proportional to 25,871.61, 38,808.28 and 20,244.09

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Solution

The fourth proportional to 25,871.61, 38,808.28 and 20,244.09 is: 30,366.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,871.61 : 38,808.28 = 20,244.09 : x
  2. Step 2: Convert to fraction form
    25,871.61/38,808.28 = 20,244.09/x
  3. Step 3: Cross multiply
    25,871.61x = 38,808.28 × 20,244.09
  4. Step 4: Simplify right side
    25,871.61x = 785,638,483.90
  5. Step 5: Solve for x
    x = 785,638,483.90/25,871.61
  6. Step 6: Final answer
    x = 30,366.81

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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.