Home / 21,167.02-29,210.56-11,607.06

Finding the Fourth Proportional to 21,167.02, 29,210.56 and 11,607.06

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Solution

The fourth proportional to 21,167.02, 29,210.56 and 11,607.06 is: 16,017.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,167.02 : 29,210.56 = 11,607.06 : x
  2. Step 2: Convert to fraction form
    21,167.02/29,210.56 = 11,607.06/x
  3. Step 3: Cross multiply
    21,167.02x = 29,210.56 × 11,607.06
  4. Step 4: Simplify right side
    21,167.02x = 339,048,722.55
  5. Step 5: Solve for x
    x = 339,048,722.55/21,167.02
  6. Step 6: Final answer
    x = 16,017.78

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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.