Home / 28,333.98-42,436.31-13,553.33

Finding the Fourth Proportional to 28,333.98, 42,436.31 and 13,553.33

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Solution

The fourth proportional to 28,333.98, 42,436.31 and 13,553.33 is: 20,299.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,333.98 : 42,436.31 = 13,553.33 : x
  2. Step 2: Convert to fraction form
    28,333.98/42,436.31 = 13,553.33/x
  3. Step 3: Cross multiply
    28,333.98x = 42,436.31 × 13,553.33
  4. Step 4: Simplify right side
    28,333.98x = 575,153,033.46
  5. Step 5: Solve for x
    x = 575,153,033.46/28,333.98
  6. Step 6: Final answer
    x = 20,299.06

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1.5x scale

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.