Home / 31,106.02-46,678.38-12,638.02

Finding the Fourth Proportional to 31,106.02, 46,678.38 and 12,638.02

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Solution

The fourth proportional to 31,106.02, 46,678.38 and 12,638.02 is: 18,964.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,106.02 : 46,678.38 = 12,638.02 : x
  2. Step 2: Convert to fraction form
    31,106.02/46,678.38 = 12,638.02/x
  3. Step 3: Cross multiply
    31,106.02x = 46,678.38 × 12,638.02
  4. Step 4: Simplify right side
    31,106.02x = 589,922,135.92
  5. Step 5: Solve for x
    x = 589,922,135.92/31,106.02
  6. Step 6: Final answer
    x = 18,964.89

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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.