Home / 21,624.02-29,839.65-12,190.58

Finding the Fourth Proportional to 21,624.02, 29,839.65 and 12,190.58

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Solution

The fourth proportional to 21,624.02, 29,839.65 and 12,190.58 is: 16,822.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,624.02 : 29,839.65 = 12,190.58 : x
  2. Step 2: Convert to fraction form
    21,624.02/29,839.65 = 12,190.58/x
  3. Step 3: Cross multiply
    21,624.02x = 29,839.65 × 12,190.58
  4. Step 4: Simplify right side
    21,624.02x = 363,762,640.50
  5. Step 5: Solve for x
    x = 363,762,640.50/21,624.02
  6. Step 6: Final answer
    x = 16,822.16

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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.