Home / 30,793.23-42,479.64-19,457.28

Finding the Fourth Proportional to 30,793.23, 42,479.64 and 19,457.28

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Solution

The fourth proportional to 30,793.23, 42,479.64 and 19,457.28 is: 26,841.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,793.23 : 42,479.64 = 19,457.28 : x
  2. Step 2: Convert to fraction form
    30,793.23/42,479.64 = 19,457.28/x
  3. Step 3: Cross multiply
    30,793.23x = 42,479.64 × 19,457.28
  4. Step 4: Simplify right side
    30,793.23x = 826,538,249.78
  5. Step 5: Solve for x
    x = 826,538,249.78/30,793.23
  6. Step 6: Final answer
    x = 26,841.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.