Home / 19,770.42-27,283.35-12,215.01

Finding the Fourth Proportional to 19,770.42, 27,283.35 and 12,215.01

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Solution

The fourth proportional to 19,770.42, 27,283.35 and 12,215.01 is: 16,856.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,770.42 : 27,283.35 = 12,215.01 : x
  2. Step 2: Convert to fraction form
    19,770.42/27,283.35 = 12,215.01/x
  3. Step 3: Cross multiply
    19,770.42x = 27,283.35 × 12,215.01
  4. Step 4: Simplify right side
    19,770.42x = 333,266,393.08
  5. Step 5: Solve for x
    x = 333,266,393.08/19,770.42
  6. Step 6: Final answer
    x = 16,856.82

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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.