Home / 28,282.14-39,030.54-15,706.89

Finding the Fourth Proportional to 28,282.14, 39,030.54 and 15,706.89

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Solution

The fourth proportional to 28,282.14, 39,030.54 and 15,706.89 is: 21,676.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,282.14 : 39,030.54 = 15,706.89 : x
  2. Step 2: Convert to fraction form
    28,282.14/39,030.54 = 15,706.89/x
  3. Step 3: Cross multiply
    28,282.14x = 39,030.54 × 15,706.89
  4. Step 4: Simplify right side
    28,282.14x = 613,048,398.42
  5. Step 5: Solve for x
    x = 613,048,398.42/28,282.14
  6. Step 6: Final answer
    x = 21,676.17

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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.