Home / 21,605.58-32,407.29-8,460.36

Finding the Fourth Proportional to 21,605.58, 32,407.29 and 8,460.36

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Solution

The fourth proportional to 21,605.58, 32,407.29 and 8,460.36 is: 12,690.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,605.58 : 32,407.29 = 8,460.36 : x
  2. Step 2: Convert to fraction form
    21,605.58/32,407.29 = 8,460.36/x
  3. Step 3: Cross multiply
    21,605.58x = 32,407.29 × 8,460.36
  4. Step 4: Simplify right side
    21,605.58x = 274,177,340.02
  5. Step 5: Solve for x
    x = 274,177,340.02/21,605.58
  6. Step 6: Final answer
    x = 12,690.12

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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.