Home / 25,665.08-35,408.02-15,589.72

Finding the Fourth Proportional to 25,665.08, 35,408.02 and 15,589.72

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Solution

The fourth proportional to 25,665.08, 35,408.02 and 15,589.72 is: 21,507.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,665.08 : 35,408.02 = 15,589.72 : x
  2. Step 2: Convert to fraction form
    25,665.08/35,408.02 = 15,589.72/x
  3. Step 3: Cross multiply
    25,665.08x = 35,408.02 × 15,589.72
  4. Step 4: Simplify right side
    25,665.08x = 552,001,117.55
  5. Step 5: Solve for x
    x = 552,001,117.55/25,665.08
  6. Step 6: Final answer
    x = 21,507.87

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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.