Home / 25,139.12-37,630.92-21,406.64

Finding the Fourth Proportional to 25,139.12, 37,630.92 and 21,406.64

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Solution

The fourth proportional to 25,139.12, 37,630.92 and 21,406.64 is: 32,043.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,139.12 : 37,630.92 = 21,406.64 : x
  2. Step 2: Convert to fraction form
    25,139.12/37,630.92 = 21,406.64/x
  3. Step 3: Cross multiply
    25,139.12x = 37,630.92 × 21,406.64
  4. Step 4: Simplify right side
    25,139.12x = 805,551,557.31
  5. Step 5: Solve for x
    x = 805,551,557.31/25,139.12
  6. Step 6: Final answer
    x = 32,043.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.