Home / 19,867.74-27,357.39-19,430.34

Finding the Fourth Proportional to 19,867.74, 27,357.39 and 19,430.34

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Solution

The fourth proportional to 19,867.74, 27,357.39 and 19,430.34 is: 26,755.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,867.74 : 27,357.39 = 19,430.34 : x
  2. Step 2: Convert to fraction form
    19,867.74/27,357.39 = 19,430.34/x
  3. Step 3: Cross multiply
    19,867.74x = 27,357.39 × 19,430.34
  4. Step 4: Simplify right side
    19,867.74x = 531,563,389.21
  5. Step 5: Solve for x
    x = 531,563,389.21/19,867.74
  6. Step 6: Final answer
    x = 26,755.10

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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.