Home / 30,642.91-45,921.84-13,962.17

Finding the Fourth Proportional to 30,642.91, 45,921.84 and 13,962.17

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Solution

The fourth proportional to 30,642.91, 45,921.84 and 13,962.17 is: 20,923.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,642.91 : 45,921.84 = 13,962.17 : x
  2. Step 2: Convert to fraction form
    30,642.91/45,921.84 = 13,962.17/x
  3. Step 3: Cross multiply
    30,642.91x = 45,921.84 × 13,962.17
  4. Step 4: Simplify right side
    30,642.91x = 641,168,581.79
  5. Step 5: Solve for x
    x = 641,168,581.79/30,642.91
  6. Step 6: Final answer
    x = 20,923.88

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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.