Home / 20,088.90-30,140.19-9,693.54

Finding the Fourth Proportional to 20,088.90, 30,140.19 and 9,693.54

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Solution

The fourth proportional to 20,088.90, 30,140.19 and 9,693.54 is: 14,543.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,088.90 : 30,140.19 = 9,693.54 : x
  2. Step 2: Convert to fraction form
    20,088.90/30,140.19 = 9,693.54/x
  3. Step 3: Cross multiply
    20,088.90x = 30,140.19 × 9,693.54
  4. Step 4: Simplify right side
    20,088.90x = 292,165,137.37
  5. Step 5: Solve for x
    x = 292,165,137.37/20,088.90
  6. Step 6: Final answer
    x = 14,543.61

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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.