Home / 31,102.64-42,922.68-18,525.68

Finding the Fourth Proportional to 31,102.64, 42,922.68 and 18,525.68

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Solution

The fourth proportional to 31,102.64, 42,922.68 and 18,525.68 is: 25,566.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,102.64 : 42,922.68 = 18,525.68 : x
  2. Step 2: Convert to fraction form
    31,102.64/42,922.68 = 18,525.68/x
  3. Step 3: Cross multiply
    31,102.64x = 42,922.68 × 18,525.68
  4. Step 4: Simplify right side
    31,102.64x = 795,171,834.42
  5. Step 5: Solve for x
    x = 795,171,834.42/31,102.64
  6. Step 6: Final answer
    x = 25,566.06

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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.