Home / 25,621.02-38,387.79-13,913.28

Finding the Fourth Proportional to 25,621.02, 38,387.79 and 13,913.28

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Solution

The fourth proportional to 25,621.02, 38,387.79 and 13,913.28 is: 20,846.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,621.02 : 38,387.79 = 13,913.28 : x
  2. Step 2: Convert to fraction form
    25,621.02/38,387.79 = 13,913.28/x
  3. Step 3: Cross multiply
    25,621.02x = 38,387.79 × 13,913.28
  4. Step 4: Simplify right side
    25,621.02x = 534,100,070.85
  5. Step 5: Solve for x
    x = 534,100,070.85/25,621.02
  6. Step 6: Final answer
    x = 20,846.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.