Home / 31,531.69-47,300.87-12,808.93

Finding the Fourth Proportional to 31,531.69, 47,300.87 and 12,808.93

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Solution

The fourth proportional to 31,531.69, 47,300.87 and 12,808.93 is: 19,214.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,531.69 : 47,300.87 = 12,808.93 : x
  2. Step 2: Convert to fraction form
    31,531.69/47,300.87 = 12,808.93/x
  3. Step 3: Cross multiply
    31,531.69x = 47,300.87 × 12,808.93
  4. Step 4: Simplify right side
    31,531.69x = 605,873,532.77
  5. Step 5: Solve for x
    x = 605,873,532.77/31,531.69
  6. Step 6: Final answer
    x = 19,214.75

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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.