Home / 20,718.48-28,602.34-16,171.41

Finding the Fourth Proportional to 20,718.48, 28,602.34 and 16,171.41

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Solution

The fourth proportional to 20,718.48, 28,602.34 and 16,171.41 is: 22,325.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,718.48 : 28,602.34 = 16,171.41 : x
  2. Step 2: Convert to fraction form
    20,718.48/28,602.34 = 16,171.41/x
  3. Step 3: Cross multiply
    20,718.48x = 28,602.34 × 16,171.41
  4. Step 4: Simplify right side
    20,718.48x = 462,540,126.67
  5. Step 5: Solve for x
    x = 462,540,126.67/20,718.48
  6. Step 6: Final answer
    x = 22,325.00

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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.