Home / 28,975.61-43,472.73-13,186.28

Finding the Fourth Proportional to 28,975.61, 43,472.73 and 13,186.28

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Solution

The fourth proportional to 28,975.61, 43,472.73 and 13,186.28 is: 19,783.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,975.61 : 43,472.73 = 13,186.28 : x
  2. Step 2: Convert to fraction form
    28,975.61/43,472.73 = 13,186.28/x
  3. Step 3: Cross multiply
    28,975.61x = 43,472.73 × 13,186.28
  4. Step 4: Simplify right side
    28,975.61x = 573,243,372.78
  5. Step 5: Solve for x
    x = 573,243,372.78/28,975.61
  6. Step 6: Final answer
    x = 19,783.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.