Home / 28,060.98-38,723.90-15,314.41

Finding the Fourth Proportional to 28,060.98, 38,723.90 and 15,314.41

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Solution

The fourth proportional to 28,060.98, 38,723.90 and 15,314.41 is: 21,133.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,060.98 : 38,723.90 = 15,314.41 : x
  2. Step 2: Convert to fraction form
    28,060.98/38,723.90 = 15,314.41/x
  3. Step 3: Cross multiply
    28,060.98x = 38,723.90 × 15,314.41
  4. Step 4: Simplify right side
    28,060.98x = 593,033,681.40
  5. Step 5: Solve for x
    x = 593,033,681.40/28,060.98
  6. Step 6: Final answer
    x = 21,133.75

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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.