Home / 25,699.68-38,548.80-6,981.21

Finding the Fourth Proportional to 25,699.68, 38,548.80 and 6,981.21

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Solution

The fourth proportional to 25,699.68, 38,548.80 and 6,981.21 is: 10,471.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,699.68 : 38,548.80 = 6,981.21 : x
  2. Step 2: Convert to fraction form
    25,699.68/38,548.80 = 6,981.21/x
  3. Step 3: Cross multiply
    25,699.68x = 38,548.80 × 6,981.21
  4. Step 4: Simplify right side
    25,699.68x = 269,117,268.05
  5. Step 5: Solve for x
    x = 269,117,268.05/25,699.68
  6. Step 6: Final answer
    x = 10,471.62

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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.