Home / 32,818.08-45,285.84-20,240.40

Finding the Fourth Proportional to 32,818.08, 45,285.84 and 20,240.40

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Solution

The fourth proportional to 32,818.08, 45,285.84 and 20,240.40 is: 27,929.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,818.08 : 45,285.84 = 20,240.40 : x
  2. Step 2: Convert to fraction form
    32,818.08/45,285.84 = 20,240.40/x
  3. Step 3: Cross multiply
    32,818.08x = 45,285.84 × 20,240.40
  4. Step 4: Simplify right side
    32,818.08x = 916,603,515.94
  5. Step 5: Solve for x
    x = 916,603,515.94/32,818.08
  6. Step 6: Final answer
    x = 27,929.83

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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.