Home / 28,051.78-38,713.13-16,114.81

Finding the Fourth Proportional to 28,051.78, 38,713.13 and 16,114.81

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Solution

The fourth proportional to 28,051.78, 38,713.13 and 16,114.81 is: 22,239.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,051.78 : 38,713.13 = 16,114.81 : x
  2. Step 2: Convert to fraction form
    28,051.78/38,713.13 = 16,114.81/x
  3. Step 3: Cross multiply
    28,051.78x = 38,713.13 × 16,114.81
  4. Step 4: Simplify right side
    28,051.78x = 623,854,734.46
  5. Step 5: Solve for x
    x = 623,854,734.46/28,051.78
  6. Step 6: Final answer
    x = 22,239.40

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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.