Home / 28,367.14-39,117.63-18,803.71

Finding the Fourth Proportional to 28,367.14, 39,117.63 and 18,803.71

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Solution

The fourth proportional to 28,367.14, 39,117.63 and 18,803.71 is: 25,929.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,367.14 : 39,117.63 = 18,803.71 : x
  2. Step 2: Convert to fraction form
    28,367.14/39,117.63 = 18,803.71/x
  3. Step 3: Cross multiply
    28,367.14x = 39,117.63 × 18,803.71
  4. Step 4: Simplify right side
    28,367.14x = 735,556,570.41
  5. Step 5: Solve for x
    x = 735,556,570.41/28,367.14
  6. Step 6: Final answer
    x = 25,929.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.