Home / 28,398.36-39,195.59-18,838.83

Finding the Fourth Proportional to 28,398.36, 39,195.59 and 18,838.83

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Solution

The fourth proportional to 28,398.36, 39,195.59 and 18,838.83 is: 26,001.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,398.36 : 39,195.59 = 18,838.83 : x
  2. Step 2: Convert to fraction form
    28,398.36/39,195.59 = 18,838.83/x
  3. Step 3: Cross multiply
    28,398.36x = 39,195.59 × 18,838.83
  4. Step 4: Simplify right side
    28,398.36x = 738,398,962.57
  5. Step 5: Solve for x
    x = 738,398,962.57/28,398.36
  6. Step 6: Final answer
    x = 26,001.46

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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.