Home / 20,159.40-30,214.80-10,293.60

Finding the Fourth Proportional to 20,159.40, 30,214.80 and 10,293.60

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Solution

The fourth proportional to 20,159.40, 30,214.80 and 10,293.60 is: 15,427.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,159.40 : 30,214.80 = 10,293.60 : x
  2. Step 2: Convert to fraction form
    20,159.40/30,214.80 = 10,293.60/x
  3. Step 3: Cross multiply
    20,159.40x = 30,214.80 × 10,293.60
  4. Step 4: Simplify right side
    20,159.40x = 311,019,065.28
  5. Step 5: Solve for x
    x = 311,019,065.28/20,159.40
  6. Step 6: Final answer
    x = 15,427.99

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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.