Home / 30,837.16-46,123.98-18,961.66

Finding the Fourth Proportional to 30,837.16, 46,123.98 and 18,961.66

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Solution

The fourth proportional to 30,837.16, 46,123.98 and 18,961.66 is: 28,361.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,837.16 : 46,123.98 = 18,961.66 : x
  2. Step 2: Convert to fraction form
    30,837.16/46,123.98 = 18,961.66/x
  3. Step 3: Cross multiply
    30,837.16x = 46,123.98 × 18,961.66
  4. Step 4: Simplify right side
    30,837.16x = 874,587,226.61
  5. Step 5: Solve for x
    x = 874,587,226.61/30,837.16
  6. Step 6: Final answer
    x = 28,361.47

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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.