Home / 33,159.29-45,746.27-20,408.61

Finding the Fourth Proportional to 33,159.29, 45,746.27 and 20,408.61

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Solution

The fourth proportional to 33,159.29, 45,746.27 and 20,408.61 is: 28,155.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,159.29 : 45,746.27 = 20,408.61 : x
  2. Step 2: Convert to fraction form
    33,159.29/45,746.27 = 20,408.61/x
  3. Step 3: Cross multiply
    33,159.29x = 45,746.27 × 20,408.61
  4. Step 4: Simplify right side
    33,159.29x = 933,617,681.34
  5. Step 5: Solve for x
    x = 933,617,681.34/33,159.29
  6. Step 6: Final answer
    x = 28,155.54

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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.