Home / 34,768.09-47,987.13-19,661.37

Finding the Fourth Proportional to 34,768.09, 47,987.13 and 19,661.37

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Solution

The fourth proportional to 34,768.09, 47,987.13 and 19,661.37 is: 27,136.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,768.09 : 47,987.13 = 19,661.37 : x
  2. Step 2: Convert to fraction form
    34,768.09/47,987.13 = 19,661.37/x
  3. Step 3: Cross multiply
    34,768.09x = 47,987.13 × 19,661.37
  4. Step 4: Simplify right side
    34,768.09x = 943,492,718.17
  5. Step 5: Solve for x
    x = 943,492,718.17/34,768.09
  6. Step 6: Final answer
    x = 27,136.74

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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.