Home / 28,583.48-39,425.51-20,103.59

Finding the Fourth Proportional to 28,583.48, 39,425.51 and 20,103.59

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Solution

The fourth proportional to 28,583.48, 39,425.51 and 20,103.59 is: 27,729.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,583.48 : 39,425.51 = 20,103.59 : x
  2. Step 2: Convert to fraction form
    28,583.48/39,425.51 = 20,103.59/x
  3. Step 3: Cross multiply
    28,583.48x = 39,425.51 × 20,103.59
  4. Step 4: Simplify right side
    28,583.48x = 792,594,141.71
  5. Step 5: Solve for x
    x = 792,594,141.71/28,583.48
  6. Step 6: Final answer
    x = 27,729.10

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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.