Home / 28,866.31-43,313.23-19,995.31

Finding the Fourth Proportional to 28,866.31, 43,313.23 and 19,995.31

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Solution

The fourth proportional to 28,866.31, 43,313.23 and 19,995.31 is: 30,002.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,866.31 : 43,313.23 = 19,995.31 : x
  2. Step 2: Convert to fraction form
    28,866.31/43,313.23 = 19,995.31/x
  3. Step 3: Cross multiply
    28,866.31x = 43,313.23 × 19,995.31
  4. Step 4: Simplify right side
    28,866.31x = 866,061,360.97
  5. Step 5: Solve for x
    x = 866,061,360.97/28,866.31
  6. Step 6: Final answer
    x = 30,002.50

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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.