Home / 18,829.47-25,983.79-10,331.40

Finding the Fourth Proportional to 18,829.47, 25,983.79 and 10,331.40

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Solution

The fourth proportional to 18,829.47, 25,983.79 and 10,331.40 is: 14,256.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,829.47 : 25,983.79 = 10,331.40 : x
  2. Step 2: Convert to fraction form
    18,829.47/25,983.79 = 10,331.40/x
  3. Step 3: Cross multiply
    18,829.47x = 25,983.79 × 10,331.40
  4. Step 4: Simplify right side
    18,829.47x = 268,448,928.01
  5. Step 5: Solve for x
    x = 268,448,928.01/18,829.47
  6. Step 6: Final answer
    x = 14,256.85

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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.