Home / 38,459.40-57,683.10-12,170.60

Finding the Fourth Proportional to 38,459.40, 57,683.10 and 12,170.60

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Solution

The fourth proportional to 38,459.40, 57,683.10 and 12,170.60 is: 18,254.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,459.40 : 57,683.10 = 12,170.60 : x
  2. Step 2: Convert to fraction form
    38,459.40/57,683.10 = 12,170.60/x
  3. Step 3: Cross multiply
    38,459.40x = 57,683.10 × 12,170.60
  4. Step 4: Simplify right side
    38,459.40x = 702,037,936.86
  5. Step 5: Solve for x
    x = 702,037,936.86/38,459.40
  6. Step 6: Final answer
    x = 18,254.00

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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.