Home / 36,777.60-55,166.40-21,225.60

Finding the Fourth Proportional to 36,777.60, 55,166.40 and 21,225.60

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Solution

The fourth proportional to 36,777.60, 55,166.40 and 21,225.60 is: 31,838.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,777.60 : 55,166.40 = 21,225.60 : x
  2. Step 2: Convert to fraction form
    36,777.60/55,166.40 = 21,225.60/x
  3. Step 3: Cross multiply
    36,777.60x = 55,166.40 × 21,225.60
  4. Step 4: Simplify right side
    36,777.60x = 1,170,939,939.84
  5. Step 5: Solve for x
    x = 1,170,939,939.84/36,777.60
  6. Step 6: Final answer
    x = 31,838.40

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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.