Home / 31,269.43-46,915.08-13,740.63

Finding the Fourth Proportional to 31,269.43, 46,915.08 and 13,740.63

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Solution

The fourth proportional to 31,269.43, 46,915.08 and 13,740.63 is: 20,615.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,269.43 : 46,915.08 = 13,740.63 : x
  2. Step 2: Convert to fraction form
    31,269.43/46,915.08 = 13,740.63/x
  3. Step 3: Cross multiply
    31,269.43x = 46,915.08 × 13,740.63
  4. Step 4: Simplify right side
    31,269.43x = 644,642,755.70
  5. Step 5: Solve for x
    x = 644,642,755.70/31,269.43
  6. Step 6: Final answer
    x = 20,615.75

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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.