Home / 30,409.02-41,962.05-16,979.22

Finding the Fourth Proportional to 30,409.02, 41,962.05 and 16,979.22

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Solution

The fourth proportional to 30,409.02, 41,962.05 and 16,979.22 is: 23,429.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,409.02 : 41,962.05 = 16,979.22 : x
  2. Step 2: Convert to fraction form
    30,409.02/41,962.05 = 16,979.22/x
  3. Step 3: Cross multiply
    30,409.02x = 41,962.05 × 16,979.22
  4. Step 4: Simplify right side
    30,409.02x = 712,482,878.60
  5. Step 5: Solve for x
    x = 712,482,878.60/30,409.02
  6. Step 6: Final answer
    x = 23,429.98

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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.