Home / 30,789.64-46,117.63-18,907.35

Finding the Fourth Proportional to 30,789.64, 46,117.63 and 18,907.35

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Solution

The fourth proportional to 30,789.64, 46,117.63 and 18,907.35 is: 28,319.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,789.64 : 46,117.63 = 18,907.35 : x
  2. Step 2: Convert to fraction form
    30,789.64/46,117.63 = 18,907.35/x
  3. Step 3: Cross multiply
    30,789.64x = 46,117.63 × 18,907.35
  4. Step 4: Simplify right side
    30,789.64x = 871,962,171.58
  5. Step 5: Solve for x
    x = 871,962,171.58/30,789.64
  6. Step 6: Final answer
    x = 28,319.99

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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.