Home / 25,402.83-35,073.05-15,857.28

Finding the Fourth Proportional to 25,402.83, 35,073.05 and 15,857.28

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Solution

The fourth proportional to 25,402.83, 35,073.05 and 15,857.28 is: 21,893.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,402.83 : 35,073.05 = 15,857.28 : x
  2. Step 2: Convert to fraction form
    25,402.83/35,073.05 = 15,857.28/x
  3. Step 3: Cross multiply
    25,402.83x = 35,073.05 × 15,857.28
  4. Step 4: Simplify right side
    25,402.83x = 556,163,095.02
  5. Step 5: Solve for x
    x = 556,163,095.02/25,402.83
  6. Step 6: Final answer
    x = 21,893.75

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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.