Home / 28,058.88-42,048.22-20,604.86

Finding the Fourth Proportional to 28,058.88, 42,048.22 and 20,604.86

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Solution

The fourth proportional to 28,058.88, 42,048.22 and 20,604.86 is: 30,877.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,058.88 : 42,048.22 = 20,604.86 : x
  2. Step 2: Convert to fraction form
    28,058.88/42,048.22 = 20,604.86/x
  3. Step 3: Cross multiply
    28,058.88x = 42,048.22 × 20,604.86
  4. Step 4: Simplify right side
    28,058.88x = 866,397,686.35
  5. Step 5: Solve for x
    x = 866,397,686.35/28,058.88
  6. Step 6: Final answer
    x = 30,877.84

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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.