Home / 30,883.64-46,315.05-12,158.76

Finding the Fourth Proportional to 30,883.64, 46,315.05 and 12,158.76

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Solution

The fourth proportional to 30,883.64, 46,315.05 and 12,158.76 is: 18,234.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,883.64 : 46,315.05 = 12,158.76 : x
  2. Step 2: Convert to fraction form
    30,883.64/46,315.05 = 12,158.76/x
  3. Step 3: Cross multiply
    30,883.64x = 46,315.05 × 12,158.76
  4. Step 4: Simplify right side
    30,883.64x = 563,133,577.34
  5. Step 5: Solve for x
    x = 563,133,577.34/30,883.64
  6. Step 6: Final answer
    x = 18,234.04

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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.