Home / 28,402.35-39,188.93-16,302.09

Finding the Fourth Proportional to 28,402.35, 39,188.93 and 16,302.09

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Solution

The fourth proportional to 28,402.35, 39,188.93 and 16,302.09 is: 22,493.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,402.35 : 39,188.93 = 16,302.09 : x
  2. Step 2: Convert to fraction form
    28,402.35/39,188.93 = 16,302.09/x
  3. Step 3: Cross multiply
    28,402.35x = 39,188.93 × 16,302.09
  4. Step 4: Simplify right side
    28,402.35x = 638,861,621.01
  5. Step 5: Solve for x
    x = 638,861,621.01/28,402.35
  6. Step 6: Final answer
    x = 22,493.26

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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.