Home / 38,189.22-52,700.48-21,421.86

Finding the Fourth Proportional to 38,189.22, 52,700.48 and 21,421.86

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Solution

The fourth proportional to 38,189.22, 52,700.48 and 21,421.86 is: 29,561.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,189.22 : 52,700.48 = 21,421.86 : x
  2. Step 2: Convert to fraction form
    38,189.22/52,700.48 = 21,421.86/x
  3. Step 3: Cross multiply
    38,189.22x = 52,700.48 × 21,421.86
  4. Step 4: Simplify right side
    38,189.22x = 1,128,942,304.49
  5. Step 5: Solve for x
    x = 1,128,942,304.49/38,189.22
  6. Step 6: Final answer
    x = 29,561.81

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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.