Home / 27,986.48-38,555.64-19,473.98

Finding the Fourth Proportional to 27,986.48, 38,555.64 and 19,473.98

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Solution

The fourth proportional to 27,986.48, 38,555.64 and 19,473.98 is: 26,828.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,986.48 : 38,555.64 = 19,473.98 : x
  2. Step 2: Convert to fraction form
    27,986.48/38,555.64 = 19,473.98/x
  3. Step 3: Cross multiply
    27,986.48x = 38,555.64 × 19,473.98
  4. Step 4: Simplify right side
    27,986.48x = 750,831,762.25
  5. Step 5: Solve for x
    x = 750,831,762.25/27,986.48
  6. Step 6: Final answer
    x = 26,828.37

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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.