Home / 19,319.91-28,968.69-10,302.90

Finding the Fourth Proportional to 19,319.91, 28,968.69 and 10,302.90

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Solution

The fourth proportional to 19,319.91, 28,968.69 and 10,302.90 is: 15,448.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,319.91 : 28,968.69 = 10,302.90 : x
  2. Step 2: Convert to fraction form
    19,319.91/28,968.69 = 10,302.90/x
  3. Step 3: Cross multiply
    19,319.91x = 28,968.69 × 10,302.90
  4. Step 4: Simplify right side
    19,319.91x = 298,461,516.20
  5. Step 5: Solve for x
    x = 298,461,516.20/19,319.91
  6. Step 6: Final answer
    x = 15,448.39

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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.