Home / 21,368.30-29,498.32-15,028.28

Finding the Fourth Proportional to 21,368.30, 29,498.32 and 15,028.28

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Solution

The fourth proportional to 21,368.30, 29,498.32 and 15,028.28 is: 20,746.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,368.30 : 29,498.32 = 15,028.28 : x
  2. Step 2: Convert to fraction form
    21,368.30/29,498.32 = 15,028.28/x
  3. Step 3: Cross multiply
    21,368.30x = 29,498.32 × 15,028.28
  4. Step 4: Simplify right side
    21,368.30x = 443,309,012.49
  5. Step 5: Solve for x
    x = 443,309,012.49/21,368.30
  6. Step 6: Final answer
    x = 20,746.11

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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.