Home / 25,920.05-38,870.55-9,275.58

Finding the Fourth Proportional to 25,920.05, 38,870.55 and 9,275.58

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Solution

The fourth proportional to 25,920.05, 38,870.55 and 9,275.58 is: 13,909.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,920.05 : 38,870.55 = 9,275.58 : x
  2. Step 2: Convert to fraction form
    25,920.05/38,870.55 = 9,275.58/x
  3. Step 3: Cross multiply
    25,920.05x = 38,870.55 × 9,275.58
  4. Step 4: Simplify right side
    25,920.05x = 360,546,896.17
  5. Step 5: Solve for x
    x = 360,546,896.17/25,920.05
  6. Step 6: Final answer
    x = 13,909.96

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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.