Home / 30,084.35-45,130.85-10,357.61

Finding the Fourth Proportional to 30,084.35, 45,130.85 and 10,357.61

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Solution

The fourth proportional to 30,084.35, 45,130.85 and 10,357.61 is: 15,537.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,084.35 : 45,130.85 = 10,357.61 : x
  2. Step 2: Convert to fraction form
    30,084.35/45,130.85 = 10,357.61/x
  3. Step 3: Cross multiply
    30,084.35x = 45,130.85 × 10,357.61
  4. Step 4: Simplify right side
    30,084.35x = 467,447,743.27
  5. Step 5: Solve for x
    x = 467,447,743.27/30,084.35
  6. Step 6: Final answer
    x = 15,537.90

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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.