Home / 28,562.09-39,414.67-15,814.51

Finding the Fourth Proportional to 28,562.09, 39,414.67 and 15,814.51

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Solution

The fourth proportional to 28,562.09, 39,414.67 and 15,814.51 is: 21,823.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,562.09 : 39,414.67 = 15,814.51 : x
  2. Step 2: Convert to fraction form
    28,562.09/39,414.67 = 15,814.51/x
  3. Step 3: Cross multiply
    28,562.09x = 39,414.67 × 15,814.51
  4. Step 4: Simplify right side
    28,562.09x = 623,323,554.79
  5. Step 5: Solve for x
    x = 623,323,554.79/28,562.09
  6. Step 6: Final answer
    x = 21,823.46

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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.