Home / 40,917.16-61,295.58-21,208.72

Finding the Fourth Proportional to 40,917.16, 61,295.58 and 21,208.72

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Solution

The fourth proportional to 40,917.16, 61,295.58 and 21,208.72 is: 31,771.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,917.16 : 61,295.58 = 21,208.72 : x
  2. Step 2: Convert to fraction form
    40,917.16/61,295.58 = 21,208.72/x
  3. Step 3: Cross multiply
    40,917.16x = 61,295.58 × 21,208.72
  4. Step 4: Simplify right side
    40,917.16x = 1,300,000,793.46
  5. Step 5: Solve for x
    x = 1,300,000,793.46/40,917.16
  6. Step 6: Final answer
    x = 31,771.53

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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.