Home / 25,321.53-34,943.56-13,991.03

Finding the Fourth Proportional to 25,321.53, 34,943.56 and 13,991.03

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Solution

The fourth proportional to 25,321.53, 34,943.56 and 13,991.03 is: 19,307.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,321.53 : 34,943.56 = 13,991.03 : x
  2. Step 2: Convert to fraction form
    25,321.53/34,943.56 = 13,991.03/x
  3. Step 3: Cross multiply
    25,321.53x = 34,943.56 × 13,991.03
  4. Step 4: Simplify right side
    25,321.53x = 488,896,256.53
  5. Step 5: Solve for x
    x = 488,896,256.53/25,321.53
  6. Step 6: Final answer
    x = 19,307.54

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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.