Home / 19,303.68-28,959.77-10,987.61

Finding the Fourth Proportional to 19,303.68, 28,959.77 and 10,987.61

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Solution

The fourth proportional to 19,303.68, 28,959.77 and 10,987.61 is: 16,483.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,303.68 : 28,959.77 = 10,987.61 : x
  2. Step 2: Convert to fraction form
    19,303.68/28,959.77 = 10,987.61/x
  3. Step 3: Cross multiply
    19,303.68x = 28,959.77 × 10,987.61
  4. Step 4: Simplify right side
    19,303.68x = 318,198,758.32
  5. Step 5: Solve for x
    x = 318,198,758.32/19,303.68
  6. Step 6: Final answer
    x = 16,483.84

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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.