Home / 22,478.69-30,996.28-15,313.25

Finding the Fourth Proportional to 22,478.69, 30,996.28 and 15,313.25

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Solution

The fourth proportional to 22,478.69, 30,996.28 and 15,313.25 is: 21,115.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,478.69 : 30,996.28 = 15,313.25 : x
  2. Step 2: Convert to fraction form
    22,478.69/30,996.28 = 15,313.25/x
  3. Step 3: Cross multiply
    22,478.69x = 30,996.28 × 15,313.25
  4. Step 4: Simplify right side
    22,478.69x = 474,653,784.71
  5. Step 5: Solve for x
    x = 474,653,784.71/22,478.69
  6. Step 6: Final answer
    x = 21,115.72

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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.