Home / 18,943.05-28,417.77-5,792.34

Finding the Fourth Proportional to 18,943.05, 28,417.77 and 5,792.34

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Solution

The fourth proportional to 18,943.05, 28,417.77 and 5,792.34 is: 8,689.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,943.05 : 28,417.77 = 5,792.34 : x
  2. Step 2: Convert to fraction form
    18,943.05/28,417.77 = 5,792.34/x
  3. Step 3: Cross multiply
    18,943.05x = 28,417.77 × 5,792.34
  4. Step 4: Simplify right side
    18,943.05x = 164,605,385.88
  5. Step 5: Solve for x
    x = 164,605,385.88/18,943.05
  6. Step 6: Final answer
    x = 8,689.49

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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.