Home / 14,032.80-21,053.39-4,172.40

Finding the Fourth Proportional to 14,032.80, 21,053.39 and 4,172.40

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Solution

The fourth proportional to 14,032.80, 21,053.39 and 4,172.40 is: 6,259.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,032.80 : 21,053.39 = 4,172.40 : x
  2. Step 2: Convert to fraction form
    14,032.80/21,053.39 = 4,172.40/x
  3. Step 3: Cross multiply
    14,032.80x = 21,053.39 × 4,172.40
  4. Step 4: Simplify right side
    14,032.80x = 87,843,143.57
  5. Step 5: Solve for x
    x = 87,843,143.57/14,032.80
  6. Step 6: Final answer
    x = 6,259.84

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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.