Home / 20,264.74-30,396.79-10,398.33

Finding the Fourth Proportional to 20,264.74, 30,396.79 and 10,398.33

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Solution

The fourth proportional to 20,264.74, 30,396.79 and 10,398.33 is: 15,597.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,264.74 : 30,396.79 = 10,398.33 : x
  2. Step 2: Convert to fraction form
    20,264.74/30,396.79 = 10,398.33/x
  3. Step 3: Cross multiply
    20,264.74x = 30,396.79 × 10,398.33
  4. Step 4: Simplify right side
    20,264.74x = 316,075,853.36
  5. Step 5: Solve for x
    x = 316,075,853.36/20,264.74
  6. Step 6: Final answer
    x = 15,597.33

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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.