Home / 28,678.83-39,579.45-17,351.10

Finding the Fourth Proportional to 28,678.83, 39,579.45 and 17,351.10

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Solution

The fourth proportional to 28,678.83, 39,579.45 and 17,351.10 is: 23,946.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,678.83 : 39,579.45 = 17,351.10 : x
  2. Step 2: Convert to fraction form
    28,678.83/39,579.45 = 17,351.10/x
  3. Step 3: Cross multiply
    28,678.83x = 39,579.45 × 17,351.10
  4. Step 4: Simplify right side
    28,678.83x = 686,747,208.38
  5. Step 5: Solve for x
    x = 686,747,208.38/28,678.83
  6. Step 6: Final answer
    x = 23,946.14

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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.