Home / 36,030.45-49,720.01-20,115.93

Finding the Fourth Proportional to 36,030.45, 49,720.01 and 20,115.93

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Solution

The fourth proportional to 36,030.45, 49,720.01 and 20,115.93 is: 27,758.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,030.45 : 49,720.01 = 20,115.93 : x
  2. Step 2: Convert to fraction form
    36,030.45/49,720.01 = 20,115.93/x
  3. Step 3: Cross multiply
    36,030.45x = 49,720.01 × 20,115.93
  4. Step 4: Simplify right side
    36,030.45x = 1,000,164,140.18
  5. Step 5: Solve for x
    x = 1,000,164,140.18/36,030.45
  6. Step 6: Final answer
    x = 27,758.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.