Home / 30,695.15-46,038.16-8,506.21

Finding the Fourth Proportional to 30,695.15, 46,038.16 and 8,506.21

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Solution

The fourth proportional to 30,695.15, 46,038.16 and 8,506.21 is: 12,758.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,695.15 : 46,038.16 = 8,506.21 : x
  2. Step 2: Convert to fraction form
    30,695.15/46,038.16 = 8,506.21/x
  3. Step 3: Cross multiply
    30,695.15x = 46,038.16 × 8,506.21
  4. Step 4: Simplify right side
    30,695.15x = 391,610,141.88
  5. Step 5: Solve for x
    x = 391,610,141.88/30,695.15
  6. Step 6: Final answer
    x = 12,758.05

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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.