Home / 28,425.52-42,675.36-19,107.28

Finding the Fourth Proportional to 28,425.52, 42,675.36 and 19,107.28

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Solution

The fourth proportional to 28,425.52, 42,675.36 and 19,107.28 is: 28,685.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,425.52 : 42,675.36 = 19,107.28 : x
  2. Step 2: Convert to fraction form
    28,425.52/42,675.36 = 19,107.28/x
  3. Step 3: Cross multiply
    28,425.52x = 42,675.36 × 19,107.28
  4. Step 4: Simplify right side
    28,425.52x = 815,409,743.71
  5. Step 5: Solve for x
    x = 815,409,743.71/28,425.52
  6. Step 6: Final answer
    x = 28,685.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.