Home / 31,106.83-46,679.60-12,638.83

Finding the Fourth Proportional to 31,106.83, 46,679.60 and 12,638.83

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Solution

The fourth proportional to 31,106.83, 46,679.60 and 12,638.83 is: 18,966.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,106.83 : 46,679.60 = 12,638.83 : x
  2. Step 2: Convert to fraction form
    31,106.83/46,679.60 = 12,638.83/x
  3. Step 3: Cross multiply
    31,106.83x = 46,679.60 × 12,638.83
  4. Step 4: Simplify right side
    31,106.83x = 589,975,528.87
  5. Step 5: Solve for x
    x = 589,975,528.87/31,106.83
  6. Step 6: Final answer
    x = 18,966.11

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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.