Home / 31,010.82-46,531.61-12,290.45

Finding the Fourth Proportional to 31,010.82, 46,531.61 and 12,290.45

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Solution

The fourth proportional to 31,010.82, 46,531.61 and 12,290.45 is: 18,441.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,010.82 : 46,531.61 = 12,290.45 : x
  2. Step 2: Convert to fraction form
    31,010.82/46,531.61 = 12,290.45/x
  3. Step 3: Cross multiply
    31,010.82x = 46,531.61 × 12,290.45
  4. Step 4: Simplify right side
    31,010.82x = 571,894,426.12
  5. Step 5: Solve for x
    x = 571,894,426.12/31,010.82
  6. Step 6: Final answer
    x = 18,441.77

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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.