Home / 48,511.04-72,794.64-20,429.12

Finding the Fourth Proportional to 48,511.04, 72,794.64 and 20,429.12

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Solution

The fourth proportional to 48,511.04, 72,794.64 and 20,429.12 is: 30,655.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,511.04 : 72,794.64 = 20,429.12 : x
  2. Step 2: Convert to fraction form
    48,511.04/72,794.64 = 20,429.12/x
  3. Step 3: Cross multiply
    48,511.04x = 72,794.64 × 20,429.12
  4. Step 4: Simplify right side
    48,511.04x = 1,487,130,435.92
  5. Step 5: Solve for x
    x = 1,487,130,435.92/48,511.04
  6. Step 6: Final answer
    x = 30,655.51

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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.