Home / 21,014.58-28,990.93-15,044.07

Finding the Fourth Proportional to 21,014.58, 28,990.93 and 15,044.07

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Solution

The fourth proportional to 21,014.58, 28,990.93 and 15,044.07 is: 20,754.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,014.58 : 28,990.93 = 15,044.07 : x
  2. Step 2: Convert to fraction form
    21,014.58/28,990.93 = 15,044.07/x
  3. Step 3: Cross multiply
    21,014.58x = 28,990.93 × 15,044.07
  4. Step 4: Simplify right side
    21,014.58x = 436,141,580.29
  5. Step 5: Solve for x
    x = 436,141,580.29/21,014.58
  6. Step 6: Final answer
    x = 20,754.24

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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.