Home / 28,756.62-39,681.09-16,178.94

Finding the Fourth Proportional to 28,756.62, 39,681.09 and 16,178.94

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Solution

The fourth proportional to 28,756.62, 39,681.09 and 16,178.94 is: 22,325.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,756.62 : 39,681.09 = 16,178.94 : x
  2. Step 2: Convert to fraction form
    28,756.62/39,681.09 = 16,178.94/x
  3. Step 3: Cross multiply
    28,756.62x = 39,681.09 × 16,178.94
  4. Step 4: Simplify right side
    28,756.62x = 641,997,974.24
  5. Step 5: Solve for x
    x = 641,997,974.24/28,756.62
  6. Step 6: Final answer
    x = 22,325.22

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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.