Home / 25,509.24-35,219.34-15,579

Finding the Fourth Proportional to 25,509.24, 35,219.34 and 15,579

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Solution

The fourth proportional to 25,509.24, 35,219.34 and 15,579 is: 21,509.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,509.24 : 35,219.34 = 15,579 : x
  2. Step 2: Convert to fraction form
    25,509.24/35,219.34 = 15,579/x
  3. Step 3: Cross multiply
    25,509.24x = 35,219.34 × 15,579
  4. Step 4: Simplify right side
    25,509.24x = 548,682,097.86
  5. Step 5: Solve for x
    x = 548,682,097.86/25,509.24
  6. Step 6: Final answer
    x = 21,509.15

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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.