Home / 25,911.81-35,759.43-15,301.47

Finding the Fourth Proportional to 25,911.81, 35,759.43 and 15,301.47

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Solution

The fourth proportional to 25,911.81, 35,759.43 and 15,301.47 is: 21,116.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,911.81 : 35,759.43 = 15,301.47 : x
  2. Step 2: Convert to fraction form
    25,911.81/35,759.43 = 15,301.47/x
  3. Step 3: Cross multiply
    25,911.81x = 35,759.43 × 15,301.47
  4. Step 4: Simplify right side
    25,911.81x = 547,171,845.36
  5. Step 5: Solve for x
    x = 547,171,845.36/25,911.81
  6. Step 6: Final answer
    x = 21,116.70

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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.