Home / 19,876.59-27,424.17-13,160.07

Finding the Fourth Proportional to 19,876.59, 27,424.17 and 13,160.07

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Solution

The fourth proportional to 19,876.59, 27,424.17 and 13,160.07 is: 18,157.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,876.59 : 27,424.17 = 13,160.07 : x
  2. Step 2: Convert to fraction form
    19,876.59/27,424.17 = 13,160.07/x
  3. Step 3: Cross multiply
    19,876.59x = 27,424.17 × 13,160.07
  4. Step 4: Simplify right side
    19,876.59x = 360,903,996.89
  5. Step 5: Solve for x
    x = 360,903,996.89/19,876.59
  6. Step 6: Final answer
    x = 18,157.24

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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.