Home / 19,730.04-27,172.16-19,668.56

Finding the Fourth Proportional to 19,730.04, 27,172.16 and 19,668.56

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Solution

The fourth proportional to 19,730.04, 27,172.16 and 19,668.56 is: 27,087.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,730.04 : 27,172.16 = 19,668.56 : x
  2. Step 2: Convert to fraction form
    19,730.04/27,172.16 = 19,668.56/x
  3. Step 3: Cross multiply
    19,730.04x = 27,172.16 × 19,668.56
  4. Step 4: Simplify right side
    19,730.04x = 534,437,259.29
  5. Step 5: Solve for x
    x = 534,437,259.29/19,730.04
  6. Step 6: Final answer
    x = 27,087.49

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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.