Home / 30,140.08-45,192.48-14,111.44

Finding the Fourth Proportional to 30,140.08, 45,192.48 and 14,111.44

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Solution

The fourth proportional to 30,140.08, 45,192.48 and 14,111.44 is: 21,158.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,140.08 : 45,192.48 = 14,111.44 : x
  2. Step 2: Convert to fraction form
    30,140.08/45,192.48 = 14,111.44/x
  3. Step 3: Cross multiply
    30,140.08x = 45,192.48 × 14,111.44
  4. Step 4: Simplify right side
    30,140.08x = 637,730,969.97
  5. Step 5: Solve for x
    x = 637,730,969.97/30,140.08
  6. Step 6: Final answer
    x = 21,158.90

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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.