Home / 37,421.12-51,640.80-20,654.24

Finding the Fourth Proportional to 37,421.12, 51,640.80 and 20,654.24

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Solution

The fourth proportional to 37,421.12, 51,640.80 and 20,654.24 is: 28,502.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,421.12 : 51,640.80 = 20,654.24 : x
  2. Step 2: Convert to fraction form
    37,421.12/51,640.80 = 20,654.24/x
  3. Step 3: Cross multiply
    37,421.12x = 51,640.80 × 20,654.24
  4. Step 4: Simplify right side
    37,421.12x = 1,066,601,476.99
  5. Step 5: Solve for x
    x = 1,066,601,476.99/37,421.12
  6. Step 6: Final answer
    x = 28,502.66

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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.