Home / 30,009.28-45,013.56-13,365.04

Finding the Fourth Proportional to 30,009.28, 45,013.56 and 13,365.04

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Solution

The fourth proportional to 30,009.28, 45,013.56 and 13,365.04 is: 20,047.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,009.28 : 45,013.56 = 13,365.04 : x
  2. Step 2: Convert to fraction form
    30,009.28/45,013.56 = 13,365.04/x
  3. Step 3: Cross multiply
    30,009.28x = 45,013.56 × 13,365.04
  4. Step 4: Simplify right side
    30,009.28x = 601,608,029.94
  5. Step 5: Solve for x
    x = 601,608,029.94/30,009.28
  6. Step 6: Final answer
    x = 20,047.40

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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.