Home / 21,903.24-30,225.96-12,343.60

Finding the Fourth Proportional to 21,903.24, 30,225.96 and 12,343.60

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Solution

The fourth proportional to 21,903.24, 30,225.96 and 12,343.60 is: 17,033.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,903.24 : 30,225.96 = 12,343.60 : x
  2. Step 2: Convert to fraction form
    21,903.24/30,225.96 = 12,343.60/x
  3. Step 3: Cross multiply
    21,903.24x = 30,225.96 × 12,343.60
  4. Step 4: Simplify right side
    21,903.24x = 373,097,159.86
  5. Step 5: Solve for x
    x = 373,097,159.86/21,903.24
  6. Step 6: Final answer
    x = 17,033.88

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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.