Home / 42,683.86-64,024.43-19,310.30

Finding the Fourth Proportional to 42,683.86, 64,024.43 and 19,310.30

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Solution

The fourth proportional to 42,683.86, 64,024.43 and 19,310.30 is: 28,964.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,683.86 : 64,024.43 = 19,310.30 : x
  2. Step 2: Convert to fraction form
    42,683.86/64,024.43 = 19,310.30/x
  3. Step 3: Cross multiply
    42,683.86x = 64,024.43 × 19,310.30
  4. Step 4: Simplify right side
    42,683.86x = 1,236,330,774.05
  5. Step 5: Solve for x
    x = 1,236,330,774.05/42,683.86
  6. Step 6: Final answer
    x = 28,964.83

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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.