Home / 28,688.86-39,586.32-16,111.18

Finding the Fourth Proportional to 28,688.86, 39,586.32 and 16,111.18

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Solution

The fourth proportional to 28,688.86, 39,586.32 and 16,111.18 is: 22,231.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,688.86 : 39,586.32 = 16,111.18 : x
  2. Step 2: Convert to fraction form
    28,688.86/39,586.32 = 16,111.18/x
  3. Step 3: Cross multiply
    28,688.86x = 39,586.32 × 16,111.18
  4. Step 4: Simplify right side
    28,688.86x = 637,782,327.06
  5. Step 5: Solve for x
    x = 637,782,327.06/28,688.86
  6. Step 6: Final answer
    x = 22,231.01

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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.