Home / 30,230.10-45,328.95-12,680.10

Finding the Fourth Proportional to 30,230.10, 45,328.95 and 12,680.10

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Solution

The fourth proportional to 30,230.10, 45,328.95 and 12,680.10 is: 19,013.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,230.10 : 45,328.95 = 12,680.10 : x
  2. Step 2: Convert to fraction form
    30,230.10/45,328.95 = 12,680.10/x
  3. Step 3: Cross multiply
    30,230.10x = 45,328.95 × 12,680.10
  4. Step 4: Simplify right side
    30,230.10x = 574,775,618.90
  5. Step 5: Solve for x
    x = 574,775,618.90/30,230.10
  6. Step 6: Final answer
    x = 19,013.35

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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.