Home / 20,182.60-30,266.70-7,035.40

Finding the Fourth Proportional to 20,182.60, 30,266.70 and 7,035.40

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Solution

The fourth proportional to 20,182.60, 30,266.70 and 7,035.40 is: 10,550.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,182.60 : 30,266.70 = 7,035.40 : x
  2. Step 2: Convert to fraction form
    20,182.60/30,266.70 = 7,035.40/x
  3. Step 3: Cross multiply
    20,182.60x = 30,266.70 × 7,035.40
  4. Step 4: Simplify right side
    20,182.60x = 212,938,341.18
  5. Step 5: Solve for x
    x = 212,938,341.18/20,182.60
  6. Step 6: Final answer
    x = 10,550.59

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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.