Home / 25,851.96-35,686.63-15,784.01

Finding the Fourth Proportional to 25,851.96, 35,686.63 and 15,784.01

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Solution

The fourth proportional to 25,851.96, 35,686.63 and 15,784.01 is: 21,788.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,851.96 : 35,686.63 = 15,784.01 : x
  2. Step 2: Convert to fraction form
    25,851.96/35,686.63 = 15,784.01/x
  3. Step 3: Cross multiply
    25,851.96x = 35,686.63 × 15,784.01
  4. Step 4: Simplify right side
    25,851.96x = 563,278,211.86
  5. Step 5: Solve for x
    x = 563,278,211.86/25,851.96
  6. Step 6: Final answer
    x = 21,788.61

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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.