Home / 25,721.57-35,475.75-17,220.99

Finding the Fourth Proportional to 25,721.57, 35,475.75 and 17,220.99

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Solution

The fourth proportional to 25,721.57, 35,475.75 and 17,220.99 is: 23,751.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,721.57 : 35,475.75 = 17,220.99 : x
  2. Step 2: Convert to fraction form
    25,721.57/35,475.75 = 17,220.99/x
  3. Step 3: Cross multiply
    25,721.57x = 35,475.75 × 17,220.99
  4. Step 4: Simplify right side
    25,721.57x = 610,927,535.99
  5. Step 5: Solve for x
    x = 610,927,535.99/25,721.57
  6. Step 6: Final answer
    x = 23,751.56

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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.