Home / 19,298.93-28,918.49-13,387.30

Finding the Fourth Proportional to 19,298.93, 28,918.49 and 13,387.30

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Solution

The fourth proportional to 19,298.93, 28,918.49 and 13,387.30 is: 20,060.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,298.93 : 28,918.49 = 13,387.30 : x
  2. Step 2: Convert to fraction form
    19,298.93/28,918.49 = 13,387.30/x
  3. Step 3: Cross multiply
    19,298.93x = 28,918.49 × 13,387.30
  4. Step 4: Simplify right side
    19,298.93x = 387,140,361.94
  5. Step 5: Solve for x
    x = 387,140,361.94/19,298.93
  6. Step 6: Final answer
    x = 20,060.20

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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.