Home / 28,165.76-42,256.62-14,108.81

Finding the Fourth Proportional to 28,165.76, 42,256.62 and 14,108.81

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Solution

The fourth proportional to 28,165.76, 42,256.62 and 14,108.81 is: 21,167.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,165.76 : 42,256.62 = 14,108.81 : x
  2. Step 2: Convert to fraction form
    28,165.76/42,256.62 = 14,108.81/x
  3. Step 3: Cross multiply
    28,165.76x = 42,256.62 × 14,108.81
  4. Step 4: Simplify right side
    28,165.76x = 596,190,622.82
  5. Step 5: Solve for x
    x = 596,190,622.82/28,165.76
  6. Step 6: Final answer
    x = 21,167.21

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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.