Home / 28,537.76-39,382.96-15,617.82

Finding the Fourth Proportional to 28,537.76, 39,382.96 and 15,617.82

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Solution

The fourth proportional to 28,537.76, 39,382.96 and 15,617.82 is: 21,553.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,537.76 : 39,382.96 = 15,617.82 : x
  2. Step 2: Convert to fraction form
    28,537.76/39,382.96 = 15,617.82/x
  3. Step 3: Cross multiply
    28,537.76x = 39,382.96 × 15,617.82
  4. Step 4: Simplify right side
    28,537.76x = 615,075,980.35
  5. Step 5: Solve for x
    x = 615,075,980.35/28,537.76
  6. Step 6: Final answer
    x = 21,553.06

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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.