Home / 20,754.86-28,607.56-14,707.14

Finding the Fourth Proportional to 20,754.86, 28,607.56 and 14,707.14

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Solution

The fourth proportional to 20,754.86, 28,607.56 and 14,707.14 is: 20,271.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,754.86 : 28,607.56 = 14,707.14 : x
  2. Step 2: Convert to fraction form
    20,754.86/28,607.56 = 14,707.14/x
  3. Step 3: Cross multiply
    20,754.86x = 28,607.56 × 14,707.14
  4. Step 4: Simplify right side
    20,754.86x = 420,735,389.98
  5. Step 5: Solve for x
    x = 420,735,389.98/20,754.86
  6. Step 6: Final answer
    x = 20,271.66

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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.