Home / 56,342.40-84,528-21,282.24

Finding the Fourth Proportional to 56,342.40, 84,528 and 21,282.24

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Solution

The fourth proportional to 56,342.40, 84,528 and 21,282.24 is: 31,928.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,342.40 : 84,528 = 21,282.24 : x
  2. Step 2: Convert to fraction form
    56,342.40/84,528 = 21,282.24/x
  3. Step 3: Cross multiply
    56,342.40x = 84,528 × 21,282.24
  4. Step 4: Simplify right side
    56,342.40x = 1,798,945,182.72
  5. Step 5: Solve for x
    x = 1,798,945,182.72/56,342.40
  6. Step 6: Final answer
    x = 31,928.80

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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.