Home / 56,020.96-83,986.08-20,955.52

Finding the Fourth Proportional to 56,020.96, 83,986.08 and 20,955.52

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Solution

The fourth proportional to 56,020.96, 83,986.08 and 20,955.52 is: 31,416.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,020.96 : 83,986.08 = 20,955.52 : x
  2. Step 2: Convert to fraction form
    56,020.96/83,986.08 = 20,955.52/x
  3. Step 3: Cross multiply
    56,020.96x = 83,986.08 × 20,955.52
  4. Step 4: Simplify right side
    56,020.96x = 1,759,971,979.16
  5. Step 5: Solve for x
    x = 1,759,971,979.16/56,020.96
  6. Step 6: Final answer
    x = 31,416.31

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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.