Home / 28,137.11-42,204.85-13,335.71

Finding the Fourth Proportional to 28,137.11, 42,204.85 and 13,335.71

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Solution

The fourth proportional to 28,137.11, 42,204.85 and 13,335.71 is: 20,003.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,137.11 : 42,204.85 = 13,335.71 : x
  2. Step 2: Convert to fraction form
    28,137.11/42,204.85 = 13,335.71/x
  3. Step 3: Cross multiply
    28,137.11x = 42,204.85 × 13,335.71
  4. Step 4: Simplify right side
    28,137.11x = 562,831,395.83
  5. Step 5: Solve for x
    x = 562,831,395.83/28,137.11
  6. Step 6: Final answer
    x = 20,003.17

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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.