Home / 30,963.34-42,729.02-16,816.28

Finding the Fourth Proportional to 30,963.34, 42,729.02 and 16,816.28

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Solution

The fourth proportional to 30,963.34, 42,729.02 and 16,816.28 is: 23,206.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,963.34 : 42,729.02 = 16,816.28 : x
  2. Step 2: Convert to fraction form
    30,963.34/42,729.02 = 16,816.28/x
  3. Step 3: Cross multiply
    30,963.34x = 42,729.02 × 16,816.28
  4. Step 4: Simplify right side
    30,963.34x = 718,543,164.45
  5. Step 5: Solve for x
    x = 718,543,164.45/30,963.34
  6. Step 6: Final answer
    x = 23,206.26

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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.