Home / 20,203.02-27,876.08-12,240.63

Finding the Fourth Proportional to 20,203.02, 27,876.08 and 12,240.63

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Solution

The fourth proportional to 20,203.02, 27,876.08 and 12,240.63 is: 16,889.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,203.02 : 27,876.08 = 12,240.63 : x
  2. Step 2: Convert to fraction form
    20,203.02/27,876.08 = 12,240.63/x
  3. Step 3: Cross multiply
    20,203.02x = 27,876.08 × 12,240.63
  4. Step 4: Simplify right side
    20,203.02x = 341,220,719.93
  5. Step 5: Solve for x
    x = 341,220,719.93/20,203.02
  6. Step 6: Final answer
    x = 16,889.59

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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.