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Finding the Fourth Proportional to 37,421, 51,641.04 and 20,654

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Solution

The fourth proportional to 37,421, 51,641.04 and 20,654 is: 28,502.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,421 : 51,641.04 = 20,654 : x
  2. Step 2: Convert to fraction form
    37,421/51,641.04 = 20,654/x
  3. Step 3: Cross multiply
    37,421x = 51,641.04 × 20,654
  4. Step 4: Simplify right side
    37,421x = 1,066,594,040.16
  5. Step 5: Solve for x
    x = 1,066,594,040.16/37,421
  6. Step 6: Final answer
    x = 28,502.55

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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.