Home / 21,995.61-30,329.85-16,340.84

Finding the Fourth Proportional to 21,995.61, 30,329.85 and 16,340.84

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Solution

The fourth proportional to 21,995.61, 30,329.85 and 16,340.84 is: 22,532.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,995.61 : 30,329.85 = 16,340.84 : x
  2. Step 2: Convert to fraction form
    21,995.61/30,329.85 = 16,340.84/x
  3. Step 3: Cross multiply
    21,995.61x = 30,329.85 × 16,340.84
  4. Step 4: Simplify right side
    21,995.61x = 495,615,074.42
  5. Step 5: Solve for x
    x = 495,615,074.42/21,995.61
  6. Step 6: Final answer
    x = 22,532.45

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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.