Home / 25,926.79-38,888.31-10,128.86

Finding the Fourth Proportional to 25,926.79, 38,888.31 and 10,128.86

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Solution

The fourth proportional to 25,926.79, 38,888.31 and 10,128.86 is: 15,192.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,926.79 : 38,888.31 = 10,128.86 : x
  2. Step 2: Convert to fraction form
    25,926.79/38,888.31 = 10,128.86/x
  3. Step 3: Cross multiply
    25,926.79x = 38,888.31 × 10,128.86
  4. Step 4: Simplify right side
    25,926.79x = 393,894,002.54
  5. Step 5: Solve for x
    x = 393,894,002.54/25,926.79
  6. Step 6: Final answer
    x = 15,192.55

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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.