Home / 20,280.02-27,985.74-11,327.46

Finding the Fourth Proportional to 20,280.02, 27,985.74 and 11,327.46

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Solution

The fourth proportional to 20,280.02, 27,985.74 and 11,327.46 is: 15,631.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,280.02 : 27,985.74 = 11,327.46 : x
  2. Step 2: Convert to fraction form
    20,280.02/27,985.74 = 11,327.46/x
  3. Step 3: Cross multiply
    20,280.02x = 27,985.74 × 11,327.46
  4. Step 4: Simplify right side
    20,280.02x = 317,007,350.42
  5. Step 5: Solve for x
    x = 317,007,350.42/20,280.02
  6. Step 6: Final answer
    x = 15,631.51

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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.