Home / 25,871.07-38,861.88-18,522.75

Finding the Fourth Proportional to 25,871.07, 38,861.88 and 18,522.75

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Solution

The fourth proportional to 25,871.07, 38,861.88 and 18,522.75 is: 27,823.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,871.07 : 38,861.88 = 18,522.75 : x
  2. Step 2: Convert to fraction form
    25,871.07/38,861.88 = 18,522.75/x
  3. Step 3: Cross multiply
    25,871.07x = 38,861.88 × 18,522.75
  4. Step 4: Simplify right side
    25,871.07x = 719,828,887.77
  5. Step 5: Solve for x
    x = 719,828,887.77/25,871.07
  6. Step 6: Final answer
    x = 27,823.70

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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.