Home / 28,875.86-39,849.33-16,947.80

Finding the Fourth Proportional to 28,875.86, 39,849.33 and 16,947.80

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Solution

The fourth proportional to 28,875.86, 39,849.33 and 16,947.80 is: 23,388.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,875.86 : 39,849.33 = 16,947.80 : x
  2. Step 2: Convert to fraction form
    28,875.86/39,849.33 = 16,947.80/x
  3. Step 3: Cross multiply
    28,875.86x = 39,849.33 × 16,947.80
  4. Step 4: Simplify right side
    28,875.86x = 675,358,275.73
  5. Step 5: Solve for x
    x = 675,358,275.73/28,875.86
  6. Step 6: Final answer
    x = 23,388.34

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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.