Home / 25,595.65-35,312.42-15,520.41

Finding the Fourth Proportional to 25,595.65, 35,312.42 and 15,520.41

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Solution

The fourth proportional to 25,595.65, 35,312.42 and 15,520.41 is: 21,412.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,595.65 : 35,312.42 = 15,520.41 : x
  2. Step 2: Convert to fraction form
    25,595.65/35,312.42 = 15,520.41/x
  3. Step 3: Cross multiply
    25,595.65x = 35,312.42 × 15,520.41
  4. Step 4: Simplify right side
    25,595.65x = 548,063,209.82
  5. Step 5: Solve for x
    x = 548,063,209.82/25,595.65
  6. Step 6: Final answer
    x = 21,412.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.