Home / 30,045.31-45,032.57-12,264.86

Finding the Fourth Proportional to 30,045.31, 45,032.57 and 12,264.86

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Solution

The fourth proportional to 30,045.31, 45,032.57 and 12,264.86 is: 18,382.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,045.31 : 45,032.57 = 12,264.86 : x
  2. Step 2: Convert to fraction form
    30,045.31/45,032.57 = 12,264.86/x
  3. Step 3: Cross multiply
    30,045.31x = 45,032.57 × 12,264.86
  4. Step 4: Simplify right side
    30,045.31x = 552,318,105.17
  5. Step 5: Solve for x
    x = 552,318,105.17/30,045.31
  6. Step 6: Final answer
    x = 18,382.84

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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.