Home / 31,090.40-46,630.20-11,358.80

Finding the Fourth Proportional to 31,090.40, 46,630.20 and 11,358.80

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Solution

The fourth proportional to 31,090.40, 46,630.20 and 11,358.80 is: 17,036.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,090.40 : 46,630.20 = 11,358.80 : x
  2. Step 2: Convert to fraction form
    31,090.40/46,630.20 = 11,358.80/x
  3. Step 3: Cross multiply
    31,090.40x = 46,630.20 × 11,358.80
  4. Step 4: Simplify right side
    31,090.40x = 529,663,115.76
  5. Step 5: Solve for x
    x = 529,663,115.76/31,090.40
  6. Step 6: Final answer
    x = 17,036.23

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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.