Home / 28,400.40-42,564.15-25,265.70

Finding the Fourth Proportional to 28,400.40, 42,564.15 and 25,265.70

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Solution

The fourth proportional to 28,400.40, 42,564.15 and 25,265.70 is: 37,866.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,400.40 : 42,564.15 = 25,265.70 : x
  2. Step 2: Convert to fraction form
    28,400.40/42,564.15 = 25,265.70/x
  3. Step 3: Cross multiply
    28,400.40x = 42,564.15 × 25,265.70
  4. Step 4: Simplify right side
    28,400.40x = 1,075,413,044.66
  5. Step 5: Solve for x
    x = 1,075,413,044.66/28,400.40
  6. Step 6: Final answer
    x = 37,866.12

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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.