Home / 23,182.76-31,986.81-15,643.08

Finding the Fourth Proportional to 23,182.76, 31,986.81 and 15,643.08

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Solution

The fourth proportional to 23,182.76, 31,986.81 and 15,643.08 is: 21,583.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,182.76 : 31,986.81 = 15,643.08 : x
  2. Step 2: Convert to fraction form
    23,182.76/31,986.81 = 15,643.08/x
  3. Step 3: Cross multiply
    23,182.76x = 31,986.81 × 15,643.08
  4. Step 4: Simplify right side
    23,182.76x = 500,372,227.77
  5. Step 5: Solve for x
    x = 500,372,227.77/23,182.76
  6. Step 6: Final answer
    x = 21,583.81

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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.