Home / 28,285.54-39,035.76-15,710.26

Finding the Fourth Proportional to 28,285.54, 39,035.76 and 15,710.26

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Solution

The fourth proportional to 28,285.54, 39,035.76 and 15,710.26 is: 21,681.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,285.54 : 39,035.76 = 15,710.26 : x
  2. Step 2: Convert to fraction form
    28,285.54/39,035.76 = 15,710.26/x
  3. Step 3: Cross multiply
    28,285.54x = 39,035.76 × 15,710.26
  4. Step 4: Simplify right side
    28,285.54x = 613,261,938.90
  5. Step 5: Solve for x
    x = 613,261,938.90/28,285.54
  6. Step 6: Final answer
    x = 21,681.11

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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.