Home / 31,142.21-46,690.70-12,416.63

Finding the Fourth Proportional to 31,142.21, 46,690.70 and 12,416.63

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Solution

The fourth proportional to 31,142.21, 46,690.70 and 12,416.63 is: 18,615.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,142.21 : 46,690.70 = 12,416.63 : x
  2. Step 2: Convert to fraction form
    31,142.21/46,690.70 = 12,416.63/x
  3. Step 3: Cross multiply
    31,142.21x = 46,690.70 × 12,416.63
  4. Step 4: Simplify right side
    31,142.21x = 579,741,200.98
  5. Step 5: Solve for x
    x = 579,741,200.98/31,142.21
  6. Step 6: Final answer
    x = 18,615.93

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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.