Home / 28,026.63-38,674.80-15,763.88

Finding the Fourth Proportional to 28,026.63, 38,674.80 and 15,763.88

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Solution

The fourth proportional to 28,026.63, 38,674.80 and 15,763.88 is: 21,753.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,026.63 : 38,674.80 = 15,763.88 : x
  2. Step 2: Convert to fraction form
    28,026.63/38,674.80 = 15,763.88/x
  3. Step 3: Cross multiply
    28,026.63x = 38,674.80 × 15,763.88
  4. Step 4: Simplify right side
    28,026.63x = 609,665,002.91
  5. Step 5: Solve for x
    x = 609,665,002.91/28,026.63
  6. Step 6: Final answer
    x = 21,753.06

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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.