Home / 25,485.80-38,229.34-12,335.72

Finding the Fourth Proportional to 25,485.80, 38,229.34 and 12,335.72

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Solution

The fourth proportional to 25,485.80, 38,229.34 and 12,335.72 is: 18,503.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,485.80 : 38,229.34 = 12,335.72 : x
  2. Step 2: Convert to fraction form
    25,485.80/38,229.34 = 12,335.72/x
  3. Step 3: Cross multiply
    25,485.80x = 38,229.34 × 12,335.72
  4. Step 4: Simplify right side
    25,485.80x = 471,586,434.02
  5. Step 5: Solve for x
    x = 471,586,434.02/25,485.80
  6. Step 6: Final answer
    x = 18,503.89

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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.