Home / 22,971.28-31,685.32-16,587.36

Finding the Fourth Proportional to 22,971.28, 31,685.32 and 16,587.36

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Solution

The fourth proportional to 22,971.28, 31,685.32 and 16,587.36 is: 22,879.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,971.28 : 31,685.32 = 16,587.36 : x
  2. Step 2: Convert to fraction form
    22,971.28/31,685.32 = 16,587.36/x
  3. Step 3: Cross multiply
    22,971.28x = 31,685.32 × 16,587.36
  4. Step 4: Simplify right side
    22,971.28x = 525,575,809.56
  5. Step 5: Solve for x
    x = 525,575,809.56/22,971.28
  6. Step 6: Final answer
    x = 22,879.69

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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.