Home / 25,160.70-34,721.03-14,405.21

Finding the Fourth Proportional to 25,160.70, 34,721.03 and 14,405.21

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Solution

The fourth proportional to 25,160.70, 34,721.03 and 14,405.21 is: 19,878.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,160.70 : 34,721.03 = 14,405.21 : x
  2. Step 2: Convert to fraction form
    25,160.70/34,721.03 = 14,405.21/x
  3. Step 3: Cross multiply
    25,160.70x = 34,721.03 × 14,405.21
  4. Step 4: Simplify right side
    25,160.70x = 500,163,728.57
  5. Step 5: Solve for x
    x = 500,163,728.57/25,160.70
  6. Step 6: Final answer
    x = 19,878.77

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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.