Home / 15,881.04-23,828.88-8,090.40

Finding the Fourth Proportional to 15,881.04, 23,828.88 and 8,090.40

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Solution

The fourth proportional to 15,881.04, 23,828.88 and 8,090.40 is: 12,139.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,881.04 : 23,828.88 = 8,090.40 : x
  2. Step 2: Convert to fraction form
    15,881.04/23,828.88 = 8,090.40/x
  3. Step 3: Cross multiply
    15,881.04x = 23,828.88 × 8,090.40
  4. Step 4: Simplify right side
    15,881.04x = 192,785,170.75
  5. Step 5: Solve for x
    x = 192,785,170.75/15,881.04
  6. Step 6: Final answer
    x = 12,139.33

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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.