Home / 19,430.66-26,810.49-11,475.38

Finding the Fourth Proportional to 19,430.66, 26,810.49 and 11,475.38

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Solution

The fourth proportional to 19,430.66, 26,810.49 and 11,475.38 is: 15,833.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,430.66 : 26,810.49 = 11,475.38 : x
  2. Step 2: Convert to fraction form
    19,430.66/26,810.49 = 11,475.38/x
  3. Step 3: Cross multiply
    19,430.66x = 26,810.49 × 11,475.38
  4. Step 4: Simplify right side
    19,430.66x = 307,660,560.74
  5. Step 5: Solve for x
    x = 307,660,560.74/19,430.66
  6. Step 6: Final answer
    x = 15,833.77

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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.