Home / 25,960.78-35,826.58-15,889.02

Finding the Fourth Proportional to 25,960.78, 35,826.58 and 15,889.02

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Solution

The fourth proportional to 25,960.78, 35,826.58 and 15,889.02 is: 21,927.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,960.78 : 35,826.58 = 15,889.02 : x
  2. Step 2: Convert to fraction form
    25,960.78/35,826.58 = 15,889.02/x
  3. Step 3: Cross multiply
    25,960.78x = 35,826.58 × 15,889.02
  4. Step 4: Simplify right side
    25,960.78x = 569,249,246.15
  5. Step 5: Solve for x
    x = 569,249,246.15/25,960.78
  6. Step 6: Final answer
    x = 21,927.28

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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.