Home / 31,208.20-46,812.30-11,487.40

Finding the Fourth Proportional to 31,208.20, 46,812.30 and 11,487.40

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Solution

The fourth proportional to 31,208.20, 46,812.30 and 11,487.40 is: 17,231.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,208.20 : 46,812.30 = 11,487.40 : x
  2. Step 2: Convert to fraction form
    31,208.20/46,812.30 = 11,487.40/x
  3. Step 3: Cross multiply
    31,208.20x = 46,812.30 × 11,487.40
  4. Step 4: Simplify right side
    31,208.20x = 537,751,615.02
  5. Step 5: Solve for x
    x = 537,751,615.02/31,208.20
  6. Step 6: Final answer
    x = 17,231.10

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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.