Home / 28,663.74-39,569.31-19,119.51

Finding the Fourth Proportional to 28,663.74, 39,569.31 and 19,119.51

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Solution

The fourth proportional to 28,663.74, 39,569.31 and 19,119.51 is: 26,393.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,663.74 : 39,569.31 = 19,119.51 : x
  2. Step 2: Convert to fraction form
    28,663.74/39,569.31 = 19,119.51/x
  3. Step 3: Cross multiply
    28,663.74x = 39,569.31 × 19,119.51
  4. Step 4: Simplify right side
    28,663.74x = 756,545,818.24
  5. Step 5: Solve for x
    x = 756,545,818.24/28,663.74
  6. Step 6: Final answer
    x = 26,393.83

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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.