Home / 22,004.64-30,368.88-15,288.48

Finding the Fourth Proportional to 22,004.64, 30,368.88 and 15,288.48

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Solution

The fourth proportional to 22,004.64, 30,368.88 and 15,288.48 is: 21,099.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,004.64 : 30,368.88 = 15,288.48 : x
  2. Step 2: Convert to fraction form
    22,004.64/30,368.88 = 15,288.48/x
  3. Step 3: Cross multiply
    22,004.64x = 30,368.88 × 15,288.48
  4. Step 4: Simplify right side
    22,004.64x = 464,294,014.50
  5. Step 5: Solve for x
    x = 464,294,014.50/22,004.64
  6. Step 6: Final answer
    x = 21,099.82

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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.