Home / 25,806.01-38,646.51-13,122.40

Finding the Fourth Proportional to 25,806.01, 38,646.51 and 13,122.40

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Solution

The fourth proportional to 25,806.01, 38,646.51 and 13,122.40 is: 19,651.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,806.01 : 38,646.51 = 13,122.40 : x
  2. Step 2: Convert to fraction form
    25,806.01/38,646.51 = 13,122.40/x
  3. Step 3: Cross multiply
    25,806.01x = 38,646.51 × 13,122.40
  4. Step 4: Simplify right side
    25,806.01x = 507,134,926.87
  5. Step 5: Solve for x
    x = 507,134,926.87/25,806.01
  6. Step 6: Final answer
    x = 19,651.81

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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.