Home / 28,402.85-39,192.72-16,463.72

Finding the Fourth Proportional to 28,402.85, 39,192.72 and 16,463.72

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Solution

The fourth proportional to 28,402.85, 39,192.72 and 16,463.72 is: 22,718.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,402.85 : 39,192.72 = 16,463.72 : x
  2. Step 2: Convert to fraction form
    28,402.85/39,192.72 = 16,463.72/x
  3. Step 3: Cross multiply
    28,402.85x = 39,192.72 × 16,463.72
  4. Step 4: Simplify right side
    28,402.85x = 645,257,968.12
  5. Step 5: Solve for x
    x = 645,257,968.12/28,402.85
  6. Step 6: Final answer
    x = 22,718.07

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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.