Home / 20,387.94-30,532.51-10,366.32

Finding the Fourth Proportional to 20,387.94, 30,532.51 and 10,366.32

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Solution

The fourth proportional to 20,387.94, 30,532.51 and 10,366.32 is: 15,524.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,387.94 : 30,532.51 = 10,366.32 : x
  2. Step 2: Convert to fraction form
    20,387.94/30,532.51 = 10,366.32/x
  3. Step 3: Cross multiply
    20,387.94x = 30,532.51 × 10,366.32
  4. Step 4: Simplify right side
    20,387.94x = 316,509,769.06
  5. Step 5: Solve for x
    x = 316,509,769.06/20,387.94
  6. Step 6: Final answer
    x = 15,524.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.