Home / 31,787.51-47,696.76-13,073.16

Finding the Fourth Proportional to 31,787.51, 47,696.76 and 13,073.16

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Solution

The fourth proportional to 31,787.51, 47,696.76 and 13,073.16 is: 19,616.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,787.51 : 47,696.76 = 13,073.16 : x
  2. Step 2: Convert to fraction form
    31,787.51/47,696.76 = 13,073.16/x
  3. Step 3: Cross multiply
    31,787.51x = 47,696.76 × 13,073.16
  4. Step 4: Simplify right side
    31,787.51x = 623,547,374.96
  5. Step 5: Solve for x
    x = 623,547,374.96/31,787.51
  6. Step 6: Final answer
    x = 19,616.11

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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.