Home / 32,820.08-45,295.08-20,081.72

Finding the Fourth Proportional to 32,820.08, 45,295.08 and 20,081.72

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Solution

The fourth proportional to 32,820.08, 45,295.08 and 20,081.72 is: 27,714.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,820.08 : 45,295.08 = 20,081.72 : x
  2. Step 2: Convert to fraction form
    32,820.08/45,295.08 = 20,081.72/x
  3. Step 3: Cross multiply
    32,820.08x = 45,295.08 × 20,081.72
  4. Step 4: Simplify right side
    32,820.08x = 909,603,113.94
  5. Step 5: Solve for x
    x = 909,603,113.94/32,820.08
  6. Step 6: Final answer
    x = 27,714.84

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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.