Home / 19,985.69-27,580.10-11,033.19

Finding the Fourth Proportional to 19,985.69, 27,580.10 and 11,033.19

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Solution

The fourth proportional to 19,985.69, 27,580.10 and 11,033.19 is: 15,225.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,985.69 : 27,580.10 = 11,033.19 : x
  2. Step 2: Convert to fraction form
    19,985.69/27,580.10 = 11,033.19/x
  3. Step 3: Cross multiply
    19,985.69x = 27,580.10 × 11,033.19
  4. Step 4: Simplify right side
    19,985.69x = 304,296,483.52
  5. Step 5: Solve for x
    x = 304,296,483.52/19,985.69
  6. Step 6: Final answer
    x = 15,225.72

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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.