Home / 19,829.85-27,350.91-12,749.51

Finding the Fourth Proportional to 19,829.85, 27,350.91 and 12,749.51

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Solution

The fourth proportional to 19,829.85, 27,350.91 and 12,749.51 is: 17,585.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,829.85 : 27,350.91 = 12,749.51 : x
  2. Step 2: Convert to fraction form
    19,829.85/27,350.91 = 12,749.51/x
  3. Step 3: Cross multiply
    19,829.85x = 27,350.91 × 12,749.51
  4. Step 4: Simplify right side
    19,829.85x = 348,710,563.80
  5. Step 5: Solve for x
    x = 348,710,563.80/19,829.85
  6. Step 6: Final answer
    x = 17,585.13

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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.