Home / 25,302.78-34,918.02-13,971.96

Finding the Fourth Proportional to 25,302.78, 34,918.02 and 13,971.96

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Solution

The fourth proportional to 25,302.78, 34,918.02 and 13,971.96 is: 19,281.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,302.78 : 34,918.02 = 13,971.96 : x
  2. Step 2: Convert to fraction form
    25,302.78/34,918.02 = 13,971.96/x
  3. Step 3: Cross multiply
    25,302.78x = 34,918.02 × 13,971.96
  4. Step 4: Simplify right side
    25,302.78x = 487,873,178.72
  5. Step 5: Solve for x
    x = 487,873,178.72/25,302.78
  6. Step 6: Final answer
    x = 19,281.41

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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.