Home / 19,381.36-26,560-17,515.12

Finding the Fourth Proportional to 19,381.36, 26,560 and 17,515.12

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Solution

The fourth proportional to 19,381.36, 26,560 and 17,515.12 is: 24,002.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,381.36 : 26,560 = 17,515.12 : x
  2. Step 2: Convert to fraction form
    19,381.36/26,560 = 17,515.12/x
  3. Step 3: Cross multiply
    19,381.36x = 26,560 × 17,515.12
  4. Step 4: Simplify right side
    19,381.36x = 465,201,587.20
  5. Step 5: Solve for x
    x = 465,201,587.20/19,381.36
  6. Step 6: Final answer
    x = 24,002.53

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.