Home / 28,663.19-39,554.44-15,916.04

Finding the Fourth Proportional to 28,663.19, 39,554.44 and 15,916.04

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Solution

The fourth proportional to 28,663.19, 39,554.44 and 15,916.04 is: 21,963.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,663.19 : 39,554.44 = 15,916.04 : x
  2. Step 2: Convert to fraction form
    28,663.19/39,554.44 = 15,916.04/x
  3. Step 3: Cross multiply
    28,663.19x = 39,554.44 × 15,916.04
  4. Step 4: Simplify right side
    28,663.19x = 629,549,959.98
  5. Step 5: Solve for x
    x = 629,549,959.98/28,663.19
  6. Step 6: Final answer
    x = 21,963.71

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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.