Home / 30,043.19-45,065.84-10,321.61

Finding the Fourth Proportional to 30,043.19, 45,065.84 and 10,321.61

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Solution

The fourth proportional to 30,043.19, 45,065.84 and 10,321.61 is: 15,482.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,043.19 : 45,065.84 = 10,321.61 : x
  2. Step 2: Convert to fraction form
    30,043.19/45,065.84 = 10,321.61/x
  3. Step 3: Cross multiply
    30,043.19x = 45,065.84 × 10,321.61
  4. Step 4: Simplify right side
    30,043.19x = 465,151,747.87
  5. Step 5: Solve for x
    x = 465,151,747.87/30,043.19
  6. Step 6: Final answer
    x = 15,482.77

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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.