Home / 20,079.72-30,095.69-15,133.05

Finding the Fourth Proportional to 20,079.72, 30,095.69 and 15,133.05

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Solution

The fourth proportional to 20,079.72, 30,095.69 and 15,133.05 is: 22,681.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,079.72 : 30,095.69 = 15,133.05 : x
  2. Step 2: Convert to fraction form
    20,079.72/30,095.69 = 15,133.05/x
  3. Step 3: Cross multiply
    20,079.72x = 30,095.69 × 15,133.05
  4. Step 4: Simplify right side
    20,079.72x = 455,439,505.89
  5. Step 5: Solve for x
    x = 455,439,505.89/20,079.72
  6. Step 6: Final answer
    x = 22,681.57

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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.