Home / 28,150.12-42,215.46-10,605.52

Finding the Fourth Proportional to 28,150.12, 42,215.46 and 10,605.52

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Solution

The fourth proportional to 28,150.12, 42,215.46 and 10,605.52 is: 15,904.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,150.12 : 42,215.46 = 10,605.52 : x
  2. Step 2: Convert to fraction form
    28,150.12/42,215.46 = 10,605.52/x
  3. Step 3: Cross multiply
    28,150.12x = 42,215.46 × 10,605.52
  4. Step 4: Simplify right side
    28,150.12x = 447,716,905.34
  5. Step 5: Solve for x
    x = 447,716,905.34/28,150.12
  6. Step 6: Final answer
    x = 15,904.62

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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.