Home / 28,436.01-39,241.83-15,689.19

Finding the Fourth Proportional to 28,436.01, 39,241.83 and 15,689.19

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Solution

The fourth proportional to 28,436.01, 39,241.83 and 15,689.19 is: 21,651.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,436.01 : 39,241.83 = 15,689.19 : x
  2. Step 2: Convert to fraction form
    28,436.01/39,241.83 = 15,689.19/x
  3. Step 3: Cross multiply
    28,436.01x = 39,241.83 × 15,689.19
  4. Step 4: Simplify right side
    28,436.01x = 615,672,526.82
  5. Step 5: Solve for x
    x = 615,672,526.82/28,436.01
  6. Step 6: Final answer
    x = 21,651.16

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Half scale
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Double scale
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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.