Home / 39,136.32-58,704-18,345.12

Finding the Fourth Proportional to 39,136.32, 58,704 and 18,345.12

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Solution

The fourth proportional to 39,136.32, 58,704 and 18,345.12 is: 27,517.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,136.32 : 58,704 = 18,345.12 : x
  2. Step 2: Convert to fraction form
    39,136.32/58,704 = 18,345.12/x
  3. Step 3: Cross multiply
    39,136.32x = 58,704 × 18,345.12
  4. Step 4: Simplify right side
    39,136.32x = 1,076,931,924.48
  5. Step 5: Solve for x
    x = 1,076,931,924.48/39,136.32
  6. Step 6: Final answer
    x = 27,517.46

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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.