Home / 28,544.54-42,823.80-20,127.47

Finding the Fourth Proportional to 28,544.54, 42,823.80 and 20,127.47

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Solution

The fourth proportional to 28,544.54, 42,823.80 and 20,127.47 is: 30,196.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,544.54 : 42,823.80 = 20,127.47 : x
  2. Step 2: Convert to fraction form
    28,544.54/42,823.80 = 20,127.47/x
  3. Step 3: Cross multiply
    28,544.54x = 42,823.80 × 20,127.47
  4. Step 4: Simplify right side
    28,544.54x = 861,934,535.67
  5. Step 5: Solve for x
    x = 861,934,535.67/28,544.54
  6. Step 6: Final answer
    x = 30,196.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.