Home / 28,697.20-39,602.04-15,950.32

Finding the Fourth Proportional to 28,697.20, 39,602.04 and 15,950.32

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Solution

The fourth proportional to 28,697.20, 39,602.04 and 15,950.32 is: 22,011.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,697.20 : 39,602.04 = 15,950.32 : x
  2. Step 2: Convert to fraction form
    28,697.20/39,602.04 = 15,950.32/x
  3. Step 3: Cross multiply
    28,697.20x = 39,602.04 × 15,950.32
  4. Step 4: Simplify right side
    28,697.20x = 631,665,210.65
  5. Step 5: Solve for x
    x = 631,665,210.65/28,697.20
  6. Step 6: Final answer
    x = 22,011.39

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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.