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Finding the Fourth Proportional to 37,653.69, 51,962.81 and 20,658.81

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Solution

The fourth proportional to 37,653.69, 51,962.81 and 20,658.81 is: 28,509.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,653.69 : 51,962.81 = 20,658.81 : x
  2. Step 2: Convert to fraction form
    37,653.69/51,962.81 = 20,658.81/x
  3. Step 3: Cross multiply
    37,653.69x = 51,962.81 × 20,658.81
  4. Step 4: Simplify right side
    37,653.69x = 1,073,489,715.56
  5. Step 5: Solve for x
    x = 1,073,489,715.56/37,653.69
  6. Step 6: Final answer
    x = 28,509.55

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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.