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Finding the Fourth Proportional to 56,002.80, 84,004.20 and 14,449.80

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Solution

The fourth proportional to 56,002.80, 84,004.20 and 14,449.80 is: 21,674.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,002.80 : 84,004.20 = 14,449.80 : x
  2. Step 2: Convert to fraction form
    56,002.80/84,004.20 = 14,449.80/x
  3. Step 3: Cross multiply
    56,002.80x = 84,004.20 × 14,449.80
  4. Step 4: Simplify right side
    56,002.80x = 1,213,843,889.16
  5. Step 5: Solve for x
    x = 1,213,843,889.16/56,002.80
  6. Step 6: Final answer
    x = 21,674.70

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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.