Home / 31,870.59-47,804.05-12,151.14

Finding the Fourth Proportional to 31,870.59, 47,804.05 and 12,151.14

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Solution

The fourth proportional to 31,870.59, 47,804.05 and 12,151.14 is: 18,226.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,870.59 : 47,804.05 = 12,151.14 : x
  2. Step 2: Convert to fraction form
    31,870.59/47,804.05 = 12,151.14/x
  3. Step 3: Cross multiply
    31,870.59x = 47,804.05 × 12,151.14
  4. Step 4: Simplify right side
    31,870.59x = 580,873,704.12
  5. Step 5: Solve for x
    x = 580,873,704.12/31,870.59
  6. Step 6: Final answer
    x = 18,226.01

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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.