Home / 31,138.44-46,701.18-12,406.92

Finding the Fourth Proportional to 31,138.44, 46,701.18 and 12,406.92

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Solution

The fourth proportional to 31,138.44, 46,701.18 and 12,406.92 is: 18,607.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,138.44 : 46,701.18 = 12,406.92 : x
  2. Step 2: Convert to fraction form
    31,138.44/46,701.18 = 12,406.92/x
  3. Step 3: Cross multiply
    31,138.44x = 46,701.18 × 12,406.92
  4. Step 4: Simplify right side
    31,138.44x = 579,417,804.17
  5. Step 5: Solve for x
    x = 579,417,804.17/31,138.44
  6. Step 6: Final answer
    x = 18,607.80

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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.