Home / 20,349.02-28,097.89-13,549.68

Finding the Fourth Proportional to 20,349.02, 28,097.89 and 13,549.68

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Solution

The fourth proportional to 20,349.02, 28,097.89 and 13,549.68 is: 18,709.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,349.02 : 28,097.89 = 13,549.68 : x
  2. Step 2: Convert to fraction form
    20,349.02/28,097.89 = 13,549.68/x
  3. Step 3: Cross multiply
    20,349.02x = 28,097.89 × 13,549.68
  4. Step 4: Simplify right side
    20,349.02x = 380,717,384.30
  5. Step 5: Solve for x
    x = 380,717,384.30/20,349.02
  6. Step 6: Final answer
    x = 18,709.37

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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.