Home / 19,280.64-26,602.41-11,321.31

Finding the Fourth Proportional to 19,280.64, 26,602.41 and 11,321.31

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Solution

The fourth proportional to 19,280.64, 26,602.41 and 11,321.31 is: 15,620.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,280.64 : 26,602.41 = 11,321.31 : x
  2. Step 2: Convert to fraction form
    19,280.64/26,602.41 = 11,321.31/x
  3. Step 3: Cross multiply
    19,280.64x = 26,602.41 × 11,321.31
  4. Step 4: Simplify right side
    19,280.64x = 301,174,130.36
  5. Step 5: Solve for x
    x = 301,174,130.36/19,280.64
  6. Step 6: Final answer
    x = 15,620.55

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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.