Home / 28,275.74-39,009.76-16,788.12

Finding the Fourth Proportional to 28,275.74, 39,009.76 and 16,788.12

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Solution

The fourth proportional to 28,275.74, 39,009.76 and 16,788.12 is: 23,161.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,275.74 : 39,009.76 = 16,788.12 : x
  2. Step 2: Convert to fraction form
    28,275.74/39,009.76 = 16,788.12/x
  3. Step 3: Cross multiply
    28,275.74x = 39,009.76 × 16,788.12
  4. Step 4: Simplify right side
    28,275.74x = 654,900,532.05
  5. Step 5: Solve for x
    x = 654,900,532.05/28,275.74
  6. Step 6: Final answer
    x = 23,161.22

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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.