Home / 21,385.34-32,054.10-8,896.86

Finding the Fourth Proportional to 21,385.34, 32,054.10 and 8,896.86

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Solution

The fourth proportional to 21,385.34, 32,054.10 and 8,896.86 is: 13,335.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,385.34 : 32,054.10 = 8,896.86 : x
  2. Step 2: Convert to fraction form
    21,385.34/32,054.10 = 8,896.86/x
  3. Step 3: Cross multiply
    21,385.34x = 32,054.10 × 8,896.86
  4. Step 4: Simplify right side
    21,385.34x = 285,180,840.13
  5. Step 5: Solve for x
    x = 285,180,840.13/21,385.34
  6. Step 6: Final answer
    x = 13,335.35

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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.