Home / 16,930.47-23,366.78-10,979.45

Finding the Fourth Proportional to 16,930.47, 23,366.78 and 10,979.45

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Solution

The fourth proportional to 16,930.47, 23,366.78 and 10,979.45 is: 15,153.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,930.47 : 23,366.78 = 10,979.45 : x
  2. Step 2: Convert to fraction form
    16,930.47/23,366.78 = 10,979.45/x
  3. Step 3: Cross multiply
    16,930.47x = 23,366.78 × 10,979.45
  4. Step 4: Simplify right side
    16,930.47x = 256,554,349.74
  5. Step 5: Solve for x
    x = 256,554,349.74/16,930.47
  6. Step 6: Final answer
    x = 15,153.41

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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.