Home / 33,159.46-45,746.51-20,408.80

Finding the Fourth Proportional to 33,159.46, 45,746.51 and 20,408.80

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Solution

The fourth proportional to 33,159.46, 45,746.51 and 20,408.80 is: 28,155.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,159.46 : 45,746.51 = 20,408.80 : x
  2. Step 2: Convert to fraction form
    33,159.46/45,746.51 = 20,408.80/x
  3. Step 3: Cross multiply
    33,159.46x = 45,746.51 × 20,408.80
  4. Step 4: Simplify right side
    33,159.46x = 933,631,373.29
  5. Step 5: Solve for x
    x = 933,631,373.29/33,159.46
  6. Step 6: Final answer
    x = 28,155.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.