Home / 25,889.95-38,778.01-21,396.70

Finding the Fourth Proportional to 25,889.95, 38,778.01 and 21,396.70

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Solution

The fourth proportional to 25,889.95, 38,778.01 and 21,396.70 is: 32,048.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,889.95 : 38,778.01 = 21,396.70 : x
  2. Step 2: Convert to fraction form
    25,889.95/38,778.01 = 21,396.70/x
  3. Step 3: Cross multiply
    25,889.95x = 38,778.01 × 21,396.70
  4. Step 4: Simplify right side
    25,889.95x = 829,721,446.57
  5. Step 5: Solve for x
    x = 829,721,446.57/25,889.95
  6. Step 6: Final answer
    x = 32,048.01

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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.