Home / 31,864.84-47,769.31-12,130.27

Finding the Fourth Proportional to 31,864.84, 47,769.31 and 12,130.27

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Solution

The fourth proportional to 31,864.84, 47,769.31 and 12,130.27 is: 18,184.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,864.84 : 47,769.31 = 12,130.27 : x
  2. Step 2: Convert to fraction form
    31,864.84/47,769.31 = 12,130.27/x
  3. Step 3: Cross multiply
    31,864.84x = 47,769.31 × 12,130.27
  4. Step 4: Simplify right side
    31,864.84x = 579,454,628.01
  5. Step 5: Solve for x
    x = 579,454,628.01/31,864.84
  6. Step 6: Final answer
    x = 18,184.77

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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.