Home / 28,317.04-39,076.50-15,741.52

Finding the Fourth Proportional to 28,317.04, 39,076.50 and 15,741.52

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Solution

The fourth proportional to 28,317.04, 39,076.50 and 15,741.52 is: 21,722.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,317.04 : 39,076.50 = 15,741.52 : x
  2. Step 2: Convert to fraction form
    28,317.04/39,076.50 = 15,741.52/x
  3. Step 3: Cross multiply
    28,317.04x = 39,076.50 × 15,741.52
  4. Step 4: Simplify right side
    28,317.04x = 615,123,506.28
  5. Step 5: Solve for x
    x = 615,123,506.28/28,317.04
  6. Step 6: Final answer
    x = 21,722.73

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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.