Home / 21,460.08-29,615.76-12,028.32

Finding the Fourth Proportional to 21,460.08, 29,615.76 and 12,028.32

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Solution

The fourth proportional to 21,460.08, 29,615.76 and 12,028.32 is: 16,599.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,460.08 : 29,615.76 = 12,028.32 : x
  2. Step 2: Convert to fraction form
    21,460.08/29,615.76 = 12,028.32/x
  3. Step 3: Cross multiply
    21,460.08x = 29,615.76 × 12,028.32
  4. Step 4: Simplify right side
    21,460.08x = 356,227,838.32
  5. Step 5: Solve for x
    x = 356,227,838.32/21,460.08
  6. Step 6: Final answer
    x = 16,599.56

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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.