Home / 20,658.02-28,501.32-12,042.23

Finding the Fourth Proportional to 20,658.02, 28,501.32 and 12,042.23

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Solution

The fourth proportional to 20,658.02, 28,501.32 and 12,042.23 is: 16,614.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,658.02 : 28,501.32 = 12,042.23 : x
  2. Step 2: Convert to fraction form
    20,658.02/28,501.32 = 12,042.23/x
  3. Step 3: Cross multiply
    20,658.02x = 28,501.32 × 12,042.23
  4. Step 4: Simplify right side
    20,658.02x = 343,219,353.40
  5. Step 5: Solve for x
    x = 343,219,353.40/20,658.02
  6. Step 6: Final answer
    x = 16,614.34

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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.