Home / 28,030-38,684.13-15,454.75

Finding the Fourth Proportional to 28,030, 38,684.13 and 15,454.75

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Solution

The fourth proportional to 28,030, 38,684.13 and 15,454.75 is: 21,329.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,030 : 38,684.13 = 15,454.75 : x
  2. Step 2: Convert to fraction form
    28,030/38,684.13 = 15,454.75/x
  3. Step 3: Cross multiply
    28,030x = 38,684.13 × 15,454.75
  4. Step 4: Simplify right side
    28,030x = 597,853,558.12
  5. Step 5: Solve for x
    x = 597,853,558.12/28,030
  6. Step 6: Final answer
    x = 21,329.06

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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.