Home / 28,416.07-39,213.32-15,669.24

Finding the Fourth Proportional to 28,416.07, 39,213.32 and 15,669.24

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Solution

The fourth proportional to 28,416.07, 39,213.32 and 15,669.24 is: 21,623.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,416.07 : 39,213.32 = 15,669.24 : x
  2. Step 2: Convert to fraction form
    28,416.07/39,213.32 = 15,669.24/x
  3. Step 3: Cross multiply
    28,416.07x = 39,213.32 × 15,669.24
  4. Step 4: Simplify right side
    28,416.07x = 614,442,990.98
  5. Step 5: Solve for x
    x = 614,442,990.98/28,416.07
  6. Step 6: Final answer
    x = 21,623.08

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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.