Home / 31,298.88-46,885.77-18,812.15

Finding the Fourth Proportional to 31,298.88, 46,885.77 and 18,812.15

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Solution

The fourth proportional to 31,298.88, 46,885.77 and 18,812.15 is: 28,180.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,298.88 : 46,885.77 = 18,812.15 : x
  2. Step 2: Convert to fraction form
    31,298.88/46,885.77 = 18,812.15/x
  3. Step 3: Cross multiply
    31,298.88x = 46,885.77 × 18,812.15
  4. Step 4: Simplify right side
    31,298.88x = 882,021,903.68
  5. Step 5: Solve for x
    x = 882,021,903.68/31,298.88
  6. Step 6: Final answer
    x = 28,180.62

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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.