Home / 20,169.61-30,258.26-7,688.59

Finding the Fourth Proportional to 20,169.61, 30,258.26 and 7,688.59

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Solution

The fourth proportional to 20,169.61, 30,258.26 and 7,688.59 is: 11,534.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,169.61 : 30,258.26 = 7,688.59 : x
  2. Step 2: Convert to fraction form
    20,169.61/30,258.26 = 7,688.59/x
  3. Step 3: Cross multiply
    20,169.61x = 30,258.26 × 7,688.59
  4. Step 4: Simplify right side
    20,169.61x = 232,643,355.25
  5. Step 5: Solve for x
    x = 232,643,355.25/20,169.61
  6. Step 6: Final answer
    x = 11,534.35

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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.