Home / 28,156.22-38,820.30-18,066.86

Finding the Fourth Proportional to 28,156.22, 38,820.30 and 18,066.86

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Solution

The fourth proportional to 28,156.22, 38,820.30 and 18,066.86 is: 24,909.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,156.22 : 38,820.30 = 18,066.86 : x
  2. Step 2: Convert to fraction form
    28,156.22/38,820.30 = 18,066.86/x
  3. Step 3: Cross multiply
    28,156.22x = 38,820.30 × 18,066.86
  4. Step 4: Simplify right side
    28,156.22x = 701,360,925.26
  5. Step 5: Solve for x
    x = 701,360,925.26/28,156.22
  6. Step 6: Final answer
    x = 24,909.63

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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.