Home / 28,410.06-39,204.11-15,662.58

Finding the Fourth Proportional to 28,410.06, 39,204.11 and 15,662.58

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Solution

The fourth proportional to 28,410.06, 39,204.11 and 15,662.58 is: 21,613.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,410.06 : 39,204.11 = 15,662.58 : x
  2. Step 2: Convert to fraction form
    28,410.06/39,204.11 = 15,662.58/x
  3. Step 3: Cross multiply
    28,410.06x = 39,204.11 × 15,662.58
  4. Step 4: Simplify right side
    28,410.06x = 614,037,430.89
  5. Step 5: Solve for x
    x = 614,037,430.89/28,410.06
  6. Step 6: Final answer
    x = 21,613.38

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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.