Home / 21,630.21-32,442.53-6,840.63

Finding the Fourth Proportional to 21,630.21, 32,442.53 and 6,840.63

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Solution

The fourth proportional to 21,630.21, 32,442.53 and 6,840.63 is: 10,260.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,630.21 : 32,442.53 = 6,840.63 : x
  2. Step 2: Convert to fraction form
    21,630.21/32,442.53 = 6,840.63/x
  3. Step 3: Cross multiply
    21,630.21x = 32,442.53 × 6,840.63
  4. Step 4: Simplify right side
    21,630.21x = 221,927,309.79
  5. Step 5: Solve for x
    x = 221,927,309.79/21,630.21
  6. Step 6: Final answer
    x = 10,260.06

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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.