Home / 20,179.70-30,280.35-9,088.10

Finding the Fourth Proportional to 20,179.70, 30,280.35 and 9,088.10

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Solution

The fourth proportional to 20,179.70, 30,280.35 and 9,088.10 is: 13,637.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,179.70 : 30,280.35 = 9,088.10 : x
  2. Step 2: Convert to fraction form
    20,179.70/30,280.35 = 9,088.10/x
  3. Step 3: Cross multiply
    20,179.70x = 30,280.35 × 9,088.10
  4. Step 4: Simplify right side
    20,179.70x = 275,190,848.84
  5. Step 5: Solve for x
    x = 275,190,848.84/20,179.70
  6. Step 6: Final answer
    x = 13,637.01

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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.