Home / 25,556.16-38,330.16-13,085.40

Finding the Fourth Proportional to 25,556.16, 38,330.16 and 13,085.40

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Solution

The fourth proportional to 25,556.16, 38,330.16 and 13,085.40 is: 19,626.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,556.16 : 38,330.16 = 13,085.40 : x
  2. Step 2: Convert to fraction form
    25,556.16/38,330.16 = 13,085.40/x
  3. Step 3: Cross multiply
    25,556.16x = 38,330.16 × 13,085.40
  4. Step 4: Simplify right side
    25,556.16x = 501,565,475.66
  5. Step 5: Solve for x
    x = 501,565,475.66/25,556.16
  6. Step 6: Final answer
    x = 19,626.01

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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.