Home / 33,431.08-50,140.12-12,656.20

Finding the Fourth Proportional to 33,431.08, 50,140.12 and 12,656.20

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Solution

The fourth proportional to 33,431.08, 50,140.12 and 12,656.20 is: 18,981.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,431.08 : 50,140.12 = 12,656.20 : x
  2. Step 2: Convert to fraction form
    33,431.08/50,140.12 = 12,656.20/x
  3. Step 3: Cross multiply
    33,431.08x = 50,140.12 × 12,656.20
  4. Step 4: Simplify right side
    33,431.08x = 634,583,386.74
  5. Step 5: Solve for x
    x = 634,583,386.74/33,431.08
  6. Step 6: Final answer
    x = 18,981.84

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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.