Home / 21,987.02-30,302.43-16,009.22

Finding the Fourth Proportional to 21,987.02, 30,302.43 and 16,009.22

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Solution

The fourth proportional to 21,987.02, 30,302.43 and 16,009.22 is: 22,063.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,987.02 : 30,302.43 = 16,009.22 : x
  2. Step 2: Convert to fraction form
    21,987.02/30,302.43 = 16,009.22/x
  3. Step 3: Cross multiply
    21,987.02x = 30,302.43 × 16,009.22
  4. Step 4: Simplify right side
    21,987.02x = 485,118,268.40
  5. Step 5: Solve for x
    x = 485,118,268.40/21,987.02
  6. Step 6: Final answer
    x = 22,063.85

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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.