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Finding the Fourth Proportional to 14,263.60, 21,395.40 and 14,020.60

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Solution

The fourth proportional to 14,263.60, 21,395.40 and 14,020.60 is: 21,030.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,263.60 : 21,395.40 = 14,020.60 : x
  2. Step 2: Convert to fraction form
    14,263.60/21,395.40 = 14,020.60/x
  3. Step 3: Cross multiply
    14,263.60x = 21,395.40 × 14,020.60
  4. Step 4: Simplify right side
    14,263.60x = 299,976,345.24
  5. Step 5: Solve for x
    x = 299,976,345.24/14,263.60
  6. Step 6: Final answer
    x = 21,030.90

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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.