Home / 42,683.70-64,025.55-13,101.60

Finding the Fourth Proportional to 42,683.70, 64,025.55 and 13,101.60

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Solution

The fourth proportional to 42,683.70, 64,025.55 and 13,101.60 is: 19,652.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,683.70 : 64,025.55 = 13,101.60 : x
  2. Step 2: Convert to fraction form
    42,683.70/64,025.55 = 13,101.60/x
  3. Step 3: Cross multiply
    42,683.70x = 64,025.55 × 13,101.60
  4. Step 4: Simplify right side
    42,683.70x = 838,837,145.88
  5. Step 5: Solve for x
    x = 838,837,145.88/42,683.70
  6. Step 6: Final answer
    x = 19,652.40

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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.