Home / 36,000.72-49,679.16-19,870.86

Finding the Fourth Proportional to 36,000.72, 49,679.16 and 19,870.86

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Solution

The fourth proportional to 36,000.72, 49,679.16 and 19,870.86 is: 27,420.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,000.72 : 49,679.16 = 19,870.86 : x
  2. Step 2: Convert to fraction form
    36,000.72/49,679.16 = 19,870.86/x
  3. Step 3: Cross multiply
    36,000.72x = 49,679.16 × 19,870.86
  4. Step 4: Simplify right side
    36,000.72x = 987,167,633.28
  5. Step 5: Solve for x
    x = 987,167,633.28/36,000.72
  6. Step 6: Final answer
    x = 27,420.77

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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.