Home / 22,979.07-31,711.14-12,907.52

Finding the Fourth Proportional to 22,979.07, 31,711.14 and 12,907.52

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Solution

The fourth proportional to 22,979.07, 31,711.14 and 12,907.52 is: 17,812.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,979.07 : 31,711.14 = 12,907.52 : x
  2. Step 2: Convert to fraction form
    22,979.07/31,711.14 = 12,907.52/x
  3. Step 3: Cross multiply
    22,979.07x = 31,711.14 × 12,907.52
  4. Step 4: Simplify right side
    22,979.07x = 409,312,097.83
  5. Step 5: Solve for x
    x = 409,312,097.83/22,979.07
  6. Step 6: Final answer
    x = 17,812.39

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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.