Home / 19,309.69-28,953.86-10,435.64

Finding the Fourth Proportional to 19,309.69, 28,953.86 and 10,435.64

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Solution

The fourth proportional to 19,309.69, 28,953.86 and 10,435.64 is: 15,647.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,309.69 : 28,953.86 = 10,435.64 : x
  2. Step 2: Convert to fraction form
    19,309.69/28,953.86 = 10,435.64/x
  3. Step 3: Cross multiply
    19,309.69x = 28,953.86 × 10,435.64
  4. Step 4: Simplify right side
    19,309.69x = 302,151,862.62
  5. Step 5: Solve for x
    x = 302,151,862.62/19,309.69
  6. Step 6: Final answer
    x = 15,647.68

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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.