Home / 19,988.08-29,976.04-8,298.56

Finding the Fourth Proportional to 19,988.08, 29,976.04 and 8,298.56

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Solution

The fourth proportional to 19,988.08, 29,976.04 and 8,298.56 is: 12,445.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,988.08 : 29,976.04 = 8,298.56 : x
  2. Step 2: Convert to fraction form
    19,988.08/29,976.04 = 8,298.56/x
  3. Step 3: Cross multiply
    19,988.08x = 29,976.04 × 8,298.56
  4. Step 4: Simplify right side
    19,988.08x = 248,758,051.82
  5. Step 5: Solve for x
    x = 248,758,051.82/19,988.08
  6. Step 6: Final answer
    x = 12,445.32

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1.5x scale

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.