Home / 19,980.34-27,572.59-11,028.01

Finding the Fourth Proportional to 19,980.34, 27,572.59 and 11,028.01

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Solution

The fourth proportional to 19,980.34, 27,572.59 and 11,028.01 is: 15,218.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,980.34 : 27,572.59 = 11,028.01 : x
  2. Step 2: Convert to fraction form
    19,980.34/27,572.59 = 11,028.01/x
  3. Step 3: Cross multiply
    19,980.34x = 27,572.59 × 11,028.01
  4. Step 4: Simplify right side
    19,980.34x = 304,070,798.25
  5. Step 5: Solve for x
    x = 304,070,798.25/19,980.34
  6. Step 6: Final answer
    x = 15,218.50

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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.