Home / 28,210.64-42,318.08-9,490.72

Finding the Fourth Proportional to 28,210.64, 42,318.08 and 9,490.72

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Solution

The fourth proportional to 28,210.64, 42,318.08 and 9,490.72 is: 14,236.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,210.64 : 42,318.08 = 9,490.72 : x
  2. Step 2: Convert to fraction form
    28,210.64/42,318.08 = 9,490.72/x
  3. Step 3: Cross multiply
    28,210.64x = 42,318.08 × 9,490.72
  4. Step 4: Simplify right side
    28,210.64x = 401,629,048.22
  5. Step 5: Solve for x
    x = 401,629,048.22/28,210.64
  6. Step 6: Final answer
    x = 14,236.79

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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.