Home / 25,886.20-38,829.30-7,415.80

Finding the Fourth Proportional to 25,886.20, 38,829.30 and 7,415.80

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Solution

The fourth proportional to 25,886.20, 38,829.30 and 7,415.80 is: 11,123.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,886.20 : 38,829.30 = 7,415.80 : x
  2. Step 2: Convert to fraction form
    25,886.20/38,829.30 = 7,415.80/x
  3. Step 3: Cross multiply
    25,886.20x = 38,829.30 × 7,415.80
  4. Step 4: Simplify right side
    25,886.20x = 287,950,322.94
  5. Step 5: Solve for x
    x = 287,950,322.94/25,886.20
  6. Step 6: Final answer
    x = 11,123.70

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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.