Home / 21,702.48-29,952.18-12,270.84

Finding the Fourth Proportional to 21,702.48, 29,952.18 and 12,270.84

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Solution

The fourth proportional to 21,702.48, 29,952.18 and 12,270.84 is: 16,935.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,702.48 : 29,952.18 = 12,270.84 : x
  2. Step 2: Convert to fraction form
    21,702.48/29,952.18 = 12,270.84/x
  3. Step 3: Cross multiply
    21,702.48x = 29,952.18 × 12,270.84
  4. Step 4: Simplify right side
    21,702.48x = 367,538,408.43
  5. Step 5: Solve for x
    x = 367,538,408.43/21,702.48
  6. Step 6: Final answer
    x = 16,935.32

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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.