Home / 25,390.62-35,075.56-20,279.42

Finding the Fourth Proportional to 25,390.62, 35,075.56 and 20,279.42

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Solution

The fourth proportional to 25,390.62, 35,075.56 and 20,279.42 is: 28,014.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,390.62 : 35,075.56 = 20,279.42 : x
  2. Step 2: Convert to fraction form
    25,390.62/35,075.56 = 20,279.42/x
  3. Step 3: Cross multiply
    25,390.62x = 35,075.56 × 20,279.42
  4. Step 4: Simplify right side
    25,390.62x = 711,312,012.98
  5. Step 5: Solve for x
    x = 711,312,012.98/25,390.62
  6. Step 6: Final answer
    x = 28,014.76

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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.