Home / 28,742.84-39,664.94-16,167.72

Finding the Fourth Proportional to 28,742.84, 39,664.94 and 16,167.72

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Solution

The fourth proportional to 28,742.84, 39,664.94 and 16,167.72 is: 22,311.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,742.84 : 39,664.94 = 16,167.72 : x
  2. Step 2: Convert to fraction form
    28,742.84/39,664.94 = 16,167.72/x
  3. Step 3: Cross multiply
    28,742.84x = 39,664.94 × 16,167.72
  4. Step 4: Simplify right side
    28,742.84x = 641,291,643.74
  5. Step 5: Solve for x
    x = 641,291,643.74/28,742.84
  6. Step 6: Final answer
    x = 22,311.35

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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.