Home / 31,688.89-47,486.14-28,888.22

Finding the Fourth Proportional to 31,688.89, 47,486.14 and 28,888.22

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Solution

The fourth proportional to 31,688.89, 47,486.14 and 28,888.22 is: 43,289.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,688.89 : 47,486.14 = 28,888.22 : x
  2. Step 2: Convert to fraction form
    31,688.89/47,486.14 = 28,888.22/x
  3. Step 3: Cross multiply
    31,688.89x = 47,486.14 × 28,888.22
  4. Step 4: Simplify right side
    31,688.89x = 1,371,790,059.27
  5. Step 5: Solve for x
    x = 1,371,790,059.27/31,688.89
  6. Step 6: Final answer
    x = 43,289.31

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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.