Home / 19,331.04-28,976.16-7,628.16

Finding the Fourth Proportional to 19,331.04, 28,976.16 and 7,628.16

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Solution

The fourth proportional to 19,331.04, 28,976.16 and 7,628.16 is: 11,434.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,331.04 : 28,976.16 = 7,628.16 : x
  2. Step 2: Convert to fraction form
    19,331.04/28,976.16 = 7,628.16/x
  3. Step 3: Cross multiply
    19,331.04x = 28,976.16 × 7,628.16
  4. Step 4: Simplify right side
    19,331.04x = 221,034,784.67
  5. Step 5: Solve for x
    x = 221,034,784.67/19,331.04
  6. Step 6: Final answer
    x = 11,434.19

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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.