Home / 28,898.06-39,878.80-16,151.49

Finding the Fourth Proportional to 28,898.06, 39,878.80 and 16,151.49

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Solution

The fourth proportional to 28,898.06, 39,878.80 and 16,151.49 is: 22,288.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,898.06 : 39,878.80 = 16,151.49 : x
  2. Step 2: Convert to fraction form
    28,898.06/39,878.80 = 16,151.49/x
  3. Step 3: Cross multiply
    28,898.06x = 39,878.80 × 16,151.49
  4. Step 4: Simplify right side
    28,898.06x = 644,101,999.03
  5. Step 5: Solve for x
    x = 644,101,999.03/28,898.06
  6. Step 6: Final answer
    x = 22,288.77

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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.