Home / 21,659.02-29,903.22-17,689.60

Finding the Fourth Proportional to 21,659.02, 29,903.22 and 17,689.60

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Solution

The fourth proportional to 21,659.02, 29,903.22 and 17,689.60 is: 24,422.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,659.02 : 29,903.22 = 17,689.60 : x
  2. Step 2: Convert to fraction form
    21,659.02/29,903.22 = 17,689.60/x
  3. Step 3: Cross multiply
    21,659.02x = 29,903.22 × 17,689.60
  4. Step 4: Simplify right side
    21,659.02x = 528,976,000.51
  5. Step 5: Solve for x
    x = 528,976,000.51/21,659.02
  6. Step 6: Final answer
    x = 24,422.90

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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.