Home / 19,070.60-28,638.30-14,145.80

Finding the Fourth Proportional to 19,070.60, 28,638.30 and 14,145.80

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Solution

The fourth proportional to 19,070.60, 28,638.30 and 14,145.80 is: 21,242.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,070.60 : 28,638.30 = 14,145.80 : x
  2. Step 2: Convert to fraction form
    19,070.60/28,638.30 = 14,145.80/x
  3. Step 3: Cross multiply
    19,070.60x = 28,638.30 × 14,145.80
  4. Step 4: Simplify right side
    19,070.60x = 405,111,664.14
  5. Step 5: Solve for x
    x = 405,111,664.14/19,070.60
  6. Step 6: Final answer
    x = 21,242.73

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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.