Home / 28,482.57-39,297.83-18,411.21

Finding the Fourth Proportional to 28,482.57, 39,297.83 and 18,411.21

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Solution

The fourth proportional to 28,482.57, 39,297.83 and 18,411.21 is: 25,402.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,482.57 : 39,297.83 = 18,411.21 : x
  2. Step 2: Convert to fraction form
    28,482.57/39,297.83 = 18,411.21/x
  3. Step 3: Cross multiply
    28,482.57x = 39,297.83 × 18,411.21
  4. Step 4: Simplify right side
    28,482.57x = 723,520,508.62
  5. Step 5: Solve for x
    x = 723,520,508.62/28,482.57
  6. Step 6: Final answer
    x = 25,402.22

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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.