Home / 28,549.35-39,396.83-15,803.01

Finding the Fourth Proportional to 28,549.35, 39,396.83 and 15,803.01

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Solution

The fourth proportional to 28,549.35, 39,396.83 and 15,803.01 is: 21,807.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,549.35 : 39,396.83 = 15,803.01 : x
  2. Step 2: Convert to fraction form
    28,549.35/39,396.83 = 15,803.01/x
  3. Step 3: Cross multiply
    28,549.35x = 39,396.83 × 15,803.01
  4. Step 4: Simplify right side
    28,549.35x = 622,588,419.44
  5. Step 5: Solve for x
    x = 622,588,419.44/28,549.35
  6. Step 6: Final answer
    x = 21,807.45

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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.