Home / 19,322.04-28,927.90-12,728.12

Finding the Fourth Proportional to 19,322.04, 28,927.90 and 12,728.12

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Solution

The fourth proportional to 19,322.04, 28,927.90 and 12,728.12 is: 19,055.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,322.04 : 28,927.90 = 12,728.12 : x
  2. Step 2: Convert to fraction form
    19,322.04/28,927.90 = 12,728.12/x
  3. Step 3: Cross multiply
    19,322.04x = 28,927.90 × 12,728.12
  4. Step 4: Simplify right side
    19,322.04x = 368,197,782.55
  5. Step 5: Solve for x
    x = 368,197,782.55/19,322.04
  6. Step 6: Final answer
    x = 19,055.84

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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.