Home / 30,102.10-45,136.95-12,552.10

Finding the Fourth Proportional to 30,102.10, 45,136.95 and 12,552.10

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Solution

The fourth proportional to 30,102.10, 45,136.95 and 12,552.10 is: 18,821.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,102.10 : 45,136.95 = 12,552.10 : x
  2. Step 2: Convert to fraction form
    30,102.10/45,136.95 = 12,552.10/x
  3. Step 3: Cross multiply
    30,102.10x = 45,136.95 × 12,552.10
  4. Step 4: Simplify right side
    30,102.10x = 566,563,510.10
  5. Step 5: Solve for x
    x = 566,563,510.10/30,102.10
  6. Step 6: Final answer
    x = 18,821.39

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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.