Home / 25,647.24-35,409.20-19,667.40

Finding the Fourth Proportional to 25,647.24, 35,409.20 and 19,667.40

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Solution

The fourth proportional to 25,647.24, 35,409.20 and 19,667.40 is: 27,153.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,647.24 : 35,409.20 = 19,667.40 : x
  2. Step 2: Convert to fraction form
    25,647.24/35,409.20 = 19,667.40/x
  3. Step 3: Cross multiply
    25,647.24x = 35,409.20 × 19,667.40
  4. Step 4: Simplify right side
    25,647.24x = 696,406,900.08
  5. Step 5: Solve for x
    x = 696,406,900.08/25,647.24
  6. Step 6: Final answer
    x = 27,153.29

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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.