Home / 25,925.51-38,856.66-13,438.65

Finding the Fourth Proportional to 25,925.51, 38,856.66 and 13,438.65

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Solution

The fourth proportional to 25,925.51, 38,856.66 and 13,438.65 is: 20,141.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,925.51 : 38,856.66 = 13,438.65 : x
  2. Step 2: Convert to fraction form
    25,925.51/38,856.66 = 13,438.65/x
  3. Step 3: Cross multiply
    25,925.51x = 38,856.66 × 13,438.65
  4. Step 4: Simplify right side
    25,925.51x = 522,181,053.91
  5. Step 5: Solve for x
    x = 522,181,053.91/25,925.51
  6. Step 6: Final answer
    x = 20,141.60

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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.