Home / 20,009.28-30,032.75-10,155.63

Finding the Fourth Proportional to 20,009.28, 30,032.75 and 10,155.63

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Solution

The fourth proportional to 20,009.28, 30,032.75 and 10,155.63 is: 15,243.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,009.28 : 30,032.75 = 10,155.63 : x
  2. Step 2: Convert to fraction form
    20,009.28/30,032.75 = 10,155.63/x
  3. Step 3: Cross multiply
    20,009.28x = 30,032.75 × 10,155.63
  4. Step 4: Simplify right side
    20,009.28x = 305,001,496.88
  5. Step 5: Solve for x
    x = 305,001,496.88/20,009.28
  6. Step 6: Final answer
    x = 15,243.00

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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.