Home / 28,646.16-39,532.12-15,900.17

Finding the Fourth Proportional to 28,646.16, 39,532.12 and 15,900.17

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Solution

The fourth proportional to 28,646.16, 39,532.12 and 15,900.17 is: 21,942.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,646.16 : 39,532.12 = 15,900.17 : x
  2. Step 2: Convert to fraction form
    28,646.16/39,532.12 = 15,900.17/x
  3. Step 3: Cross multiply
    28,646.16x = 39,532.12 × 15,900.17
  4. Step 4: Simplify right side
    28,646.16x = 628,567,230.80
  5. Step 5: Solve for x
    x = 628,567,230.80/28,646.16
  6. Step 6: Final answer
    x = 21,942.46

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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.