Home / 31,555.04-47,332.48-8,181.48

Finding the Fourth Proportional to 31,555.04, 47,332.48 and 8,181.48

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Solution

The fourth proportional to 31,555.04, 47,332.48 and 8,181.48 is: 12,272.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,555.04 : 47,332.48 = 8,181.48 : x
  2. Step 2: Convert to fraction form
    31,555.04/47,332.48 = 8,181.48/x
  3. Step 3: Cross multiply
    31,555.04x = 47,332.48 × 8,181.48
  4. Step 4: Simplify right side
    31,555.04x = 387,249,738.47
  5. Step 5: Solve for x
    x = 387,249,738.47/31,555.04
  6. Step 6: Final answer
    x = 12,272.20

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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.