Home / 28,259.20-39,001.75-16,929.17

Finding the Fourth Proportional to 28,259.20, 39,001.75 and 16,929.17

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Solution

The fourth proportional to 28,259.20, 39,001.75 and 16,929.17 is: 23,364.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,259.20 : 39,001.75 = 16,929.17 : x
  2. Step 2: Convert to fraction form
    28,259.20/39,001.75 = 16,929.17/x
  3. Step 3: Cross multiply
    28,259.20x = 39,001.75 × 16,929.17
  4. Step 4: Simplify right side
    28,259.20x = 660,267,479.58
  5. Step 5: Solve for x
    x = 660,267,479.58/28,259.20
  6. Step 6: Final answer
    x = 23,364.69

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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.