Home / 25,378.74-35,016.30-15,313.14

Finding the Fourth Proportional to 25,378.74, 35,016.30 and 15,313.14

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Solution

The fourth proportional to 25,378.74, 35,016.30 and 15,313.14 is: 21,128.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,378.74 : 35,016.30 = 15,313.14 : x
  2. Step 2: Convert to fraction form
    25,378.74/35,016.30 = 15,313.14/x
  3. Step 3: Cross multiply
    25,378.74x = 35,016.30 × 15,313.14
  4. Step 4: Simplify right side
    25,378.74x = 536,209,504.18
  5. Step 5: Solve for x
    x = 536,209,504.18/25,378.74
  6. Step 6: Final answer
    x = 21,128.29

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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.