Home / 25,865.70-35,701.47-15,258.75

Finding the Fourth Proportional to 25,865.70, 35,701.47 and 15,258.75

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Solution

The fourth proportional to 25,865.70, 35,701.47 and 15,258.75 is: 21,061.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,865.70 : 35,701.47 = 15,258.75 : x
  2. Step 2: Convert to fraction form
    25,865.70/35,701.47 = 15,258.75/x
  3. Step 3: Cross multiply
    25,865.70x = 35,701.47 × 15,258.75
  4. Step 4: Simplify right side
    25,865.70x = 544,759,805.36
  5. Step 5: Solve for x
    x = 544,759,805.36/25,865.70
  6. Step 6: Final answer
    x = 21,061.09

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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.