Home / 19,976.68-29,970.96-8,881.84

Finding the Fourth Proportional to 19,976.68, 29,970.96 and 8,881.84

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Solution

The fourth proportional to 19,976.68, 29,970.96 and 8,881.84 is: 13,325.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,976.68 : 29,970.96 = 8,881.84 : x
  2. Step 2: Convert to fraction form
    19,976.68/29,970.96 = 8,881.84/x
  3. Step 3: Cross multiply
    19,976.68x = 29,970.96 × 8,881.84
  4. Step 4: Simplify right side
    19,976.68x = 266,197,271.37
  5. Step 5: Solve for x
    x = 266,197,271.37/19,976.68
  6. Step 6: Final answer
    x = 13,325.40

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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.