Home / 19,321.60-26,685.12-13,371.52

Finding the Fourth Proportional to 19,321.60, 26,685.12 and 13,371.52

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Solution

The fourth proportional to 19,321.60, 26,685.12 and 13,371.52 is: 18,467.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,321.60 : 26,685.12 = 13,371.52 : x
  2. Step 2: Convert to fraction form
    19,321.60/26,685.12 = 13,371.52/x
  3. Step 3: Cross multiply
    19,321.60x = 26,685.12 × 13,371.52
  4. Step 4: Simplify right side
    19,321.60x = 356,820,615.78
  5. Step 5: Solve for x
    x = 356,820,615.78/19,321.60
  6. Step 6: Final answer
    x = 18,467.45

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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.