Home / 28,011.84-38,672.16-18,593.28

Finding the Fourth Proportional to 28,011.84, 38,672.16 and 18,593.28

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Solution

The fourth proportional to 28,011.84, 38,672.16 and 18,593.28 is: 25,669.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,011.84 : 38,672.16 = 18,593.28 : x
  2. Step 2: Convert to fraction form
    28,011.84/38,672.16 = 18,593.28/x
  3. Step 3: Cross multiply
    28,011.84x = 38,672.16 × 18,593.28
  4. Step 4: Simplify right side
    28,011.84x = 719,042,299.08
  5. Step 5: Solve for x
    x = 719,042,299.08/28,011.84
  6. Step 6: Final answer
    x = 25,669.23

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Half scale
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Double scale
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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.