Home / 20,984.24-28,955.40-11,552.60

Finding the Fourth Proportional to 20,984.24, 28,955.40 and 11,552.60

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Solution

The fourth proportional to 20,984.24, 28,955.40 and 11,552.60 is: 15,941.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,984.24 : 28,955.40 = 11,552.60 : x
  2. Step 2: Convert to fraction form
    20,984.24/28,955.40 = 11,552.60/x
  3. Step 3: Cross multiply
    20,984.24x = 28,955.40 × 11,552.60
  4. Step 4: Simplify right side
    20,984.24x = 334,510,154.04
  5. Step 5: Solve for x
    x = 334,510,154.04/20,984.24
  6. Step 6: Final answer
    x = 15,941.02

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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.