Home / 28,370.88-42,519.06-12,570.48

Finding the Fourth Proportional to 28,370.88, 42,519.06 and 12,570.48

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Solution

The fourth proportional to 28,370.88, 42,519.06 and 12,570.48 is: 18,839.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,370.88 : 42,519.06 = 12,570.48 : x
  2. Step 2: Convert to fraction form
    28,370.88/42,519.06 = 12,570.48/x
  3. Step 3: Cross multiply
    28,370.88x = 42,519.06 × 12,570.48
  4. Step 4: Simplify right side
    28,370.88x = 534,484,993.35
  5. Step 5: Solve for x
    x = 534,484,993.35/28,370.88
  6. Step 6: Final answer
    x = 18,839.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.