Home / 19,001.60-28,502.40-13,752.80

Finding the Fourth Proportional to 19,001.60, 28,502.40 and 13,752.80

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Solution

The fourth proportional to 19,001.60, 28,502.40 and 13,752.80 is: 20,629.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,001.60 : 28,502.40 = 13,752.80 : x
  2. Step 2: Convert to fraction form
    19,001.60/28,502.40 = 13,752.80/x
  3. Step 3: Cross multiply
    19,001.60x = 28,502.40 × 13,752.80
  4. Step 4: Simplify right side
    19,001.60x = 391,987,806.72
  5. Step 5: Solve for x
    x = 391,987,806.72/19,001.60
  6. Step 6: Final answer
    x = 20,629.20

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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.