Home / 20,059.47-30,099.45-13,400.52

Finding the Fourth Proportional to 20,059.47, 30,099.45 and 13,400.52

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Solution

The fourth proportional to 20,059.47, 30,099.45 and 13,400.52 is: 20,107.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,059.47 : 30,099.45 = 13,400.52 : x
  2. Step 2: Convert to fraction form
    20,059.47/30,099.45 = 13,400.52/x
  3. Step 3: Cross multiply
    20,059.47x = 30,099.45 × 13,400.52
  4. Step 4: Simplify right side
    20,059.47x = 403,348,281.71
  5. Step 5: Solve for x
    x = 403,348,281.71/20,059.47
  6. Step 6: Final answer
    x = 20,107.62

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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.