Home / 28,421,048.72-39,221,450.56-17,403,778.64

Finding the Fourth Proportional to 28,421,048.72, 39,221,450.56 and 17,403,778.64

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Solution

The fourth proportional to 28,421,048.72, 39,221,450.56 and 17,403,778.64 is: 24,017,461.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,421,048.72 : 39,221,450.56 = 17,403,778.64 : x
  2. Step 2: Convert to fraction form
    28,421,048.72/39,221,450.56 = 17,403,778.64/x
  3. Step 3: Cross multiply
    28,421,048.72x = 39,221,450.56 × 17,403,778.64
  4. Step 4: Simplify right side
    28,421,048.72x = 682,601,443,485,944.12
  5. Step 5: Solve for x
    x = 682,601,443,485,944.12/28,421,048.72
  6. Step 6: Final answer
    x = 24,017,461.50

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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.