Home / 28,945.86-39,955.28-22,222.96

Finding the Fourth Proportional to 28,945.86, 39,955.28 and 22,222.96

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Solution

The fourth proportional to 28,945.86, 39,955.28 and 22,222.96 is: 30,675.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,945.86 : 39,955.28 = 22,222.96 : x
  2. Step 2: Convert to fraction form
    28,945.86/39,955.28 = 22,222.96/x
  3. Step 3: Cross multiply
    28,945.86x = 39,955.28 × 22,222.96
  4. Step 4: Simplify right side
    28,945.86x = 887,924,378.23
  5. Step 5: Solve for x
    x = 887,924,378.23/28,945.86
  6. Step 6: Final answer
    x = 30,675.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.