Home / 28,023.94-38,675.76-15,448.68

Finding the Fourth Proportional to 28,023.94, 38,675.76 and 15,448.68

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Solution

The fourth proportional to 28,023.94, 38,675.76 and 15,448.68 is: 21,320.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,023.94 : 38,675.76 = 15,448.68 : x
  2. Step 2: Convert to fraction form
    28,023.94/38,675.76 = 15,448.68/x
  3. Step 3: Cross multiply
    28,023.94x = 38,675.76 × 15,448.68
  4. Step 4: Simplify right side
    28,023.94x = 597,489,440.00
  5. Step 5: Solve for x
    x = 597,489,440.00/28,023.94
  6. Step 6: Final answer
    x = 21,320.68

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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.