Home / 20,653.69-28,501.99-11,701.17

Finding the Fourth Proportional to 20,653.69, 28,501.99 and 11,701.17

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Solution

The fourth proportional to 20,653.69, 28,501.99 and 11,701.17 is: 16,147.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,653.69 : 28,501.99 = 11,701.17 : x
  2. Step 2: Convert to fraction form
    20,653.69/28,501.99 = 11,701.17/x
  3. Step 3: Cross multiply
    20,653.69x = 28,501.99 × 11,701.17
  4. Step 4: Simplify right side
    20,653.69x = 333,506,630.33
  5. Step 5: Solve for x
    x = 333,506,630.33/20,653.69
  6. Step 6: Final answer
    x = 16,147.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.