Home / 20,712.41-31,042.69-16,312.49

Finding the Fourth Proportional to 20,712.41, 31,042.69 and 16,312.49

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Solution

The fourth proportional to 20,712.41, 31,042.69 and 16,312.49 is: 24,448.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,712.41 : 31,042.69 = 16,312.49 : x
  2. Step 2: Convert to fraction form
    20,712.41/31,042.69 = 16,312.49/x
  3. Step 3: Cross multiply
    20,712.41x = 31,042.69 × 16,312.49
  4. Step 4: Simplify right side
    20,712.41x = 506,383,570.20
  5. Step 5: Solve for x
    x = 506,383,570.20/20,712.41
  6. Step 6: Final answer
    x = 24,448.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.