Home / 30,632.66-42,313.62-22,715.72

Finding the Fourth Proportional to 30,632.66, 42,313.62 and 22,715.72

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Solution

The fourth proportional to 30,632.66, 42,313.62 and 22,715.72 is: 31,377.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,632.66 : 42,313.62 = 22,715.72 : x
  2. Step 2: Convert to fraction form
    30,632.66/42,313.62 = 22,715.72/x
  3. Step 3: Cross multiply
    30,632.66x = 42,313.62 × 22,715.72
  4. Step 4: Simplify right side
    30,632.66x = 961,184,344.11
  5. Step 5: Solve for x
    x = 961,184,344.11/30,632.66
  6. Step 6: Final answer
    x = 31,377.76

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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.