Home / 25,322.45-34,945.85-15,896.21

Finding the Fourth Proportional to 25,322.45, 34,945.85 and 15,896.21

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Solution

The fourth proportional to 25,322.45, 34,945.85 and 15,896.21 is: 21,937.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,322.45 : 34,945.85 = 15,896.21 : x
  2. Step 2: Convert to fraction form
    25,322.45/34,945.85 = 15,896.21/x
  3. Step 3: Cross multiply
    25,322.45x = 34,945.85 × 15,896.21
  4. Step 4: Simplify right side
    25,322.45x = 555,506,570.23
  5. Step 5: Solve for x
    x = 555,506,570.23/25,322.45
  6. Step 6: Final answer
    x = 21,937.32

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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.