Home / 23,059.08-31,821.66-12,987.72

Finding the Fourth Proportional to 23,059.08, 31,821.66 and 12,987.72

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Solution

The fourth proportional to 23,059.08, 31,821.66 and 12,987.72 is: 17,923.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,059.08 : 31,821.66 = 12,987.72 : x
  2. Step 2: Convert to fraction form
    23,059.08/31,821.66 = 12,987.72/x
  3. Step 3: Cross multiply
    23,059.08x = 31,821.66 × 12,987.72
  4. Step 4: Simplify right side
    23,059.08x = 413,290,810.02
  5. Step 5: Solve for x
    x = 413,290,810.02/23,059.08
  6. Step 6: Final answer
    x = 17,923.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.