Home / 21,341.88-32,018.09-8,858.16

Finding the Fourth Proportional to 21,341.88, 32,018.09 and 8,858.16

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Solution

The fourth proportional to 21,341.88, 32,018.09 and 8,858.16 is: 13,289.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,341.88 : 32,018.09 = 8,858.16 : x
  2. Step 2: Convert to fraction form
    21,341.88/32,018.09 = 8,858.16/x
  3. Step 3: Cross multiply
    21,341.88x = 32,018.09 × 8,858.16
  4. Step 4: Simplify right side
    21,341.88x = 283,621,319.82
  5. Step 5: Solve for x
    x = 283,621,319.82/21,341.88
  6. Step 6: Final answer
    x = 13,289.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.