Home / 28,042.78-38,697.67-16,712.02

Finding the Fourth Proportional to 28,042.78, 38,697.67 and 16,712.02

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Solution

The fourth proportional to 28,042.78, 38,697.67 and 16,712.02 is: 23,061.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,042.78 : 38,697.67 = 16,712.02 : x
  2. Step 2: Convert to fraction form
    28,042.78/38,697.67 = 16,712.02/x
  3. Step 3: Cross multiply
    28,042.78x = 38,697.67 × 16,712.02
  4. Step 4: Simplify right side
    28,042.78x = 646,716,159.14
  5. Step 5: Solve for x
    x = 646,716,159.14/28,042.78
  6. Step 6: Final answer
    x = 23,061.77

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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.