Home / 28,451.36-39,253.74-15,873.68

Finding the Fourth Proportional to 28,451.36, 39,253.74 and 15,873.68

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Solution

The fourth proportional to 28,451.36, 39,253.74 and 15,873.68 is: 21,900.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,451.36 : 39,253.74 = 15,873.68 : x
  2. Step 2: Convert to fraction form
    28,451.36/39,253.74 = 15,873.68/x
  3. Step 3: Cross multiply
    28,451.36x = 39,253.74 × 15,873.68
  4. Step 4: Simplify right side
    28,451.36x = 623,101,307.56
  5. Step 5: Solve for x
    x = 623,101,307.56/28,451.36
  6. Step 6: Final answer
    x = 21,900.58

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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.