Home / 15,904.80-23,828.40-12,967.20

Finding the Fourth Proportional to 15,904.80, 23,828.40 and 12,967.20

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Solution

The fourth proportional to 15,904.80, 23,828.40 and 12,967.20 is: 19,427.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,904.80 : 23,828.40 = 12,967.20 : x
  2. Step 2: Convert to fraction form
    15,904.80/23,828.40 = 12,967.20/x
  3. Step 3: Cross multiply
    15,904.80x = 23,828.40 × 12,967.20
  4. Step 4: Simplify right side
    15,904.80x = 308,987,628.48
  5. Step 5: Solve for x
    x = 308,987,628.48/15,904.80
  6. Step 6: Final answer
    x = 19,427.32

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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.