Home / 19,638.28-27,104.34-12,564.46

Finding the Fourth Proportional to 19,638.28, 27,104.34 and 12,564.46

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Solution

The fourth proportional to 19,638.28, 27,104.34 and 12,564.46 is: 17,341.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,638.28 : 27,104.34 = 12,564.46 : x
  2. Step 2: Convert to fraction form
    19,638.28/27,104.34 = 12,564.46/x
  3. Step 3: Cross multiply
    19,638.28x = 27,104.34 × 12,564.46
  4. Step 4: Simplify right side
    19,638.28x = 340,551,395.76
  5. Step 5: Solve for x
    x = 340,551,395.76/19,638.28
  6. Step 6: Final answer
    x = 17,341.20

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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.