Home / 28,299.04-39,050.96-15,723.36

Finding the Fourth Proportional to 28,299.04, 39,050.96 and 15,723.36

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Solution

The fourth proportional to 28,299.04, 39,050.96 and 15,723.36 is: 21,697.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,299.04 : 39,050.96 = 15,723.36 : x
  2. Step 2: Convert to fraction form
    28,299.04/39,050.96 = 15,723.36/x
  3. Step 3: Cross multiply
    28,299.04x = 39,050.96 × 15,723.36
  4. Step 4: Simplify right side
    28,299.04x = 614,012,302.43
  5. Step 5: Solve for x
    x = 614,012,302.43/28,299.04
  6. Step 6: Final answer
    x = 21,697.28

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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.