Home / 18,620.32-25,675.02-13,575.64

Finding the Fourth Proportional to 18,620.32, 25,675.02 and 13,575.64

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Solution

The fourth proportional to 18,620.32, 25,675.02 and 13,575.64 is: 18,719.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,620.32 : 25,675.02 = 13,575.64 : x
  2. Step 2: Convert to fraction form
    18,620.32/25,675.02 = 13,575.64/x
  3. Step 3: Cross multiply
    18,620.32x = 25,675.02 × 13,575.64
  4. Step 4: Simplify right side
    18,620.32x = 348,554,828.51
  5. Step 5: Solve for x
    x = 348,554,828.51/18,620.32
  6. Step 6: Final answer
    x = 18,719.06

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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.