Home / 25,985.89-35,851.74-21,197.51

Finding the Fourth Proportional to 25,985.89, 35,851.74 and 21,197.51

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Solution

The fourth proportional to 25,985.89, 35,851.74 and 21,197.51 is: 29,245.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,985.89 : 35,851.74 = 21,197.51 : x
  2. Step 2: Convert to fraction form
    25,985.89/35,851.74 = 21,197.51/x
  3. Step 3: Cross multiply
    25,985.89x = 35,851.74 × 21,197.51
  4. Step 4: Simplify right side
    25,985.89x = 759,967,602.90
  5. Step 5: Solve for x
    x = 759,967,602.90/25,985.89
  6. Step 6: Final answer
    x = 29,245.40

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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.