Home / 28,436.36-42,640.50-8,710.16

Finding the Fourth Proportional to 28,436.36, 42,640.50 and 8,710.16

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Solution

The fourth proportional to 28,436.36, 42,640.50 and 8,710.16 is: 13,060.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,436.36 : 42,640.50 = 8,710.16 : x
  2. Step 2: Convert to fraction form
    28,436.36/42,640.50 = 8,710.16/x
  3. Step 3: Cross multiply
    28,436.36x = 42,640.50 × 8,710.16
  4. Step 4: Simplify right side
    28,436.36x = 371,405,577.48
  5. Step 5: Solve for x
    x = 371,405,577.48/28,436.36
  6. Step 6: Final answer
    x = 13,060.94

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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.