Home / 19,939.17-27,515.06-10,985.23

Finding the Fourth Proportional to 19,939.17, 27,515.06 and 10,985.23

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Solution

The fourth proportional to 19,939.17, 27,515.06 and 10,985.23 is: 15,159.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,939.17 : 27,515.06 = 10,985.23 : x
  2. Step 2: Convert to fraction form
    19,939.17/27,515.06 = 10,985.23/x
  3. Step 3: Cross multiply
    19,939.17x = 27,515.06 × 10,985.23
  4. Step 4: Simplify right side
    19,939.17x = 302,259,128.45
  5. Step 5: Solve for x
    x = 302,259,128.45/19,939.17
  6. Step 6: Final answer
    x = 15,159.06

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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.