Home / 25,870.21-38,820.29-10,876.15

Finding the Fourth Proportional to 25,870.21, 38,820.29 and 10,876.15

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Solution

The fourth proportional to 25,870.21, 38,820.29 and 10,876.15 is: 16,320.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,870.21 : 38,820.29 = 10,876.15 : x
  2. Step 2: Convert to fraction form
    25,870.21/38,820.29 = 10,876.15/x
  3. Step 3: Cross multiply
    25,870.21x = 38,820.29 × 10,876.15
  4. Step 4: Simplify right side
    25,870.21x = 422,215,212.64
  5. Step 5: Solve for x
    x = 422,215,212.64/25,870.21
  6. Step 6: Final answer
    x = 16,320.52

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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.