Home / 28,501.25-39,331.62-15,926.00

Finding the Fourth Proportional to 28,501.25, 39,331.62 and 15,926.00

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Solution

The fourth proportional to 28,501.25, 39,331.62 and 15,926.00 is: 21,977.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,501.25 : 39,331.62 = 15,926.00 : x
  2. Step 2: Convert to fraction form
    28,501.25/39,331.62 = 15,926.00/x
  3. Step 3: Cross multiply
    28,501.25x = 39,331.62 × 15,926.00
  4. Step 4: Simplify right side
    28,501.25x = 626,395,183.46
  5. Step 5: Solve for x
    x = 626,395,183.46/28,501.25
  6. Step 6: Final answer
    x = 21,977.82

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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.