Home / 56,205.60-84,308.40-21,153.12

Finding the Fourth Proportional to 56,205.60, 84,308.40 and 21,153.12

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Solution

The fourth proportional to 56,205.60, 84,308.40 and 21,153.12 is: 31,729.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,205.60 : 84,308.40 = 21,153.12 : x
  2. Step 2: Convert to fraction form
    56,205.60/84,308.40 = 21,153.12/x
  3. Step 3: Cross multiply
    56,205.60x = 84,308.40 × 21,153.12
  4. Step 4: Simplify right side
    56,205.60x = 1,783,385,702.21
  5. Step 5: Solve for x
    x = 1,783,385,702.21/56,205.60
  6. Step 6: Final answer
    x = 31,729.68

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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.