Home / 43,493.02-65,240.16-12,328.28

Finding the Fourth Proportional to 43,493.02, 65,240.16 and 12,328.28

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Solution

The fourth proportional to 43,493.02, 65,240.16 and 12,328.28 is: 18,492.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,493.02 : 65,240.16 = 12,328.28 : x
  2. Step 2: Convert to fraction form
    43,493.02/65,240.16 = 12,328.28/x
  3. Step 3: Cross multiply
    43,493.02x = 65,240.16 × 12,328.28
  4. Step 4: Simplify right side
    43,493.02x = 804,298,959.72
  5. Step 5: Solve for x
    x = 804,298,959.72/43,493.02
  6. Step 6: Final answer
    x = 18,492.60

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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.