Home / 28,324.31-39,086.70-15,577.47

Finding the Fourth Proportional to 28,324.31, 39,086.70 and 15,577.47

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Solution

The fourth proportional to 28,324.31, 39,086.70 and 15,577.47 is: 21,496.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,324.31 : 39,086.70 = 15,577.47 : x
  2. Step 2: Convert to fraction form
    28,324.31/39,086.70 = 15,577.47/x
  3. Step 3: Cross multiply
    28,324.31x = 39,086.70 × 15,577.47
  4. Step 4: Simplify right side
    28,324.31x = 608,871,857.71
  5. Step 5: Solve for x
    x = 608,871,857.71/28,324.31
  6. Step 6: Final answer
    x = 21,496.44

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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.