Home / 33,129.10-49,693.57-13,421.50

Finding the Fourth Proportional to 33,129.10, 49,693.57 and 13,421.50

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Solution

The fourth proportional to 33,129.10, 49,693.57 and 13,421.50 is: 20,132.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,129.10 : 49,693.57 = 13,421.50 : x
  2. Step 2: Convert to fraction form
    33,129.10/49,693.57 = 13,421.50/x
  3. Step 3: Cross multiply
    33,129.10x = 49,693.57 × 13,421.50
  4. Step 4: Simplify right side
    33,129.10x = 666,962,249.76
  5. Step 5: Solve for x
    x = 666,962,249.76/33,129.10
  6. Step 6: Final answer
    x = 20,132.22

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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.