Home / 48,730.90-73,111.20-20,636.32

Finding the Fourth Proportional to 48,730.90, 73,111.20 and 20,636.32

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Solution

The fourth proportional to 48,730.90, 73,111.20 and 20,636.32 is: 30,960.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,730.90 : 73,111.20 = 20,636.32 : x
  2. Step 2: Convert to fraction form
    48,730.90/73,111.20 = 20,636.32/x
  3. Step 3: Cross multiply
    48,730.90x = 73,111.20 × 20,636.32
  4. Step 4: Simplify right side
    48,730.90x = 1,508,746,118.78
  5. Step 5: Solve for x
    x = 1,508,746,118.78/48,730.90
  6. Step 6: Final answer
    x = 30,960.77

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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.