Home / 30,395.12-45,592.55-8,210.78

Finding the Fourth Proportional to 30,395.12, 45,592.55 and 8,210.78

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Solution

The fourth proportional to 30,395.12, 45,592.55 and 8,210.78 is: 12,316.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,395.12 : 45,592.55 = 8,210.78 : x
  2. Step 2: Convert to fraction form
    30,395.12/45,592.55 = 8,210.78/x
  3. Step 3: Cross multiply
    30,395.12x = 45,592.55 × 8,210.78
  4. Step 4: Simplify right side
    30,395.12x = 374,350,128.67
  5. Step 5: Solve for x
    x = 374,350,128.67/30,395.12
  6. Step 6: Final answer
    x = 12,316.13

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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.