Home / 18,681.21-25,755.24-15,482.52

Finding the Fourth Proportional to 18,681.21, 25,755.24 and 15,482.52

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Solution

The fourth proportional to 18,681.21, 25,755.24 and 15,482.52 is: 21,345.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,681.21 : 25,755.24 = 15,482.52 : x
  2. Step 2: Convert to fraction form
    18,681.21/25,755.24 = 15,482.52/x
  3. Step 3: Cross multiply
    18,681.21x = 25,755.24 × 15,482.52
  4. Step 4: Simplify right side
    18,681.21x = 398,756,018.40
  5. Step 5: Solve for x
    x = 398,756,018.40/18,681.21
  6. Step 6: Final answer
    x = 21,345.30

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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.