Home / 31,874.10-47,810.88-13,164.18

Finding the Fourth Proportional to 31,874.10, 47,810.88 and 13,164.18

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Solution

The fourth proportional to 31,874.10, 47,810.88 and 13,164.18 is: 19,746.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,874.10 : 47,810.88 = 13,164.18 : x
  2. Step 2: Convert to fraction form
    31,874.10/47,810.88 = 13,164.18/x
  3. Step 3: Cross multiply
    31,874.10x = 47,810.88 × 13,164.18
  4. Step 4: Simplify right side
    31,874.10x = 629,391,030.28
  5. Step 5: Solve for x
    x = 629,391,030.28/31,874.10
  6. Step 6: Final answer
    x = 19,746.16

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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.