Home / 21,427.35-29,562.59-12,472.95

Finding the Fourth Proportional to 21,427.35, 29,562.59 and 12,472.95

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Solution

The fourth proportional to 21,427.35, 29,562.59 and 12,472.95 is: 17,208.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,427.35 : 29,562.59 = 12,472.95 : x
  2. Step 2: Convert to fraction form
    21,427.35/29,562.59 = 12,472.95/x
  3. Step 3: Cross multiply
    21,427.35x = 29,562.59 × 12,472.95
  4. Step 4: Simplify right side
    21,427.35x = 368,732,644.58
  5. Step 5: Solve for x
    x = 368,732,644.58/21,427.35
  6. Step 6: Final answer
    x = 17,208.50

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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.