Home / 30,391.17-45,607.12-10,669.79

Finding the Fourth Proportional to 30,391.17, 45,607.12 and 10,669.79

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Solution

The fourth proportional to 30,391.17, 45,607.12 and 10,669.79 is: 16,011.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,391.17 : 45,607.12 = 10,669.79 : x
  2. Step 2: Convert to fraction form
    30,391.17/45,607.12 = 10,669.79/x
  3. Step 3: Cross multiply
    30,391.17x = 45,607.12 × 10,669.79
  4. Step 4: Simplify right side
    30,391.17x = 486,618,138.19
  5. Step 5: Solve for x
    x = 486,618,138.19/30,391.17
  6. Step 6: Final answer
    x = 16,011.83

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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.