Home / 56,188.27-84,285.64-21,128.23

Finding the Fourth Proportional to 56,188.27, 84,285.64 and 21,128.23

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Solution

The fourth proportional to 56,188.27, 84,285.64 and 21,128.23 is: 31,693.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,188.27 : 84,285.64 = 21,128.23 : x
  2. Step 2: Convert to fraction form
    56,188.27/84,285.64 = 21,128.23/x
  3. Step 3: Cross multiply
    56,188.27x = 84,285.64 × 21,128.23
  4. Step 4: Simplify right side
    56,188.27x = 1,780,806,387.62
  5. Step 5: Solve for x
    x = 1,780,806,387.62/56,188.27
  6. Step 6: Final answer
    x = 31,693.56

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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.