Home / 20,502.23-28,293.30-12,002.49

Finding the Fourth Proportional to 20,502.23, 28,293.30 and 12,002.49

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Solution

The fourth proportional to 20,502.23, 28,293.30 and 12,002.49 is: 16,563.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,502.23 : 28,293.30 = 12,002.49 : x
  2. Step 2: Convert to fraction form
    20,502.23/28,293.30 = 12,002.49/x
  3. Step 3: Cross multiply
    20,502.23x = 28,293.30 × 12,002.49
  4. Step 4: Simplify right side
    20,502.23x = 339,590,050.32
  5. Step 5: Solve for x
    x = 339,590,050.32/20,502.23
  6. Step 6: Final answer
    x = 16,563.57

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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.