Home / 20,535.37-28,351.02-13,474.12

Finding the Fourth Proportional to 20,535.37, 28,351.02 and 13,474.12

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Solution

The fourth proportional to 20,535.37, 28,351.02 and 13,474.12 is: 18,602.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,535.37 : 28,351.02 = 13,474.12 : x
  2. Step 2: Convert to fraction form
    20,535.37/28,351.02 = 13,474.12/x
  3. Step 3: Cross multiply
    20,535.37x = 28,351.02 × 13,474.12
  4. Step 4: Simplify right side
    20,535.37x = 382,005,045.60
  5. Step 5: Solve for x
    x = 382,005,045.60/20,535.37
  6. Step 6: Final answer
    x = 18,602.30

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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.