Home / 56,285.20-84,460.20-21,228.40

Finding the Fourth Proportional to 56,285.20, 84,460.20 and 21,228.40

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Solution

The fourth proportional to 56,285.20, 84,460.20 and 21,228.40 is: 31,854.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,285.20 : 84,460.20 = 21,228.40 : x
  2. Step 2: Convert to fraction form
    56,285.20/84,460.20 = 21,228.40/x
  3. Step 3: Cross multiply
    56,285.20x = 84,460.20 × 21,228.40
  4. Step 4: Simplify right side
    56,285.20x = 1,792,954,909.68
  5. Step 5: Solve for x
    x = 1,792,954,909.68/56,285.20
  6. Step 6: Final answer
    x = 31,854.82

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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.