Home / 30,810.09-42,524.51-19,472.36

Finding the Fourth Proportional to 30,810.09, 42,524.51 and 19,472.36

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Solution

The fourth proportional to 30,810.09, 42,524.51 and 19,472.36 is: 26,876.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,810.09 : 42,524.51 = 19,472.36 : x
  2. Step 2: Convert to fraction form
    30,810.09/42,524.51 = 19,472.36/x
  3. Step 3: Cross multiply
    30,810.09x = 42,524.51 × 19,472.36
  4. Step 4: Simplify right side
    30,810.09x = 828,052,257.56
  5. Step 5: Solve for x
    x = 828,052,257.56/30,810.09
  6. Step 6: Final answer
    x = 26,876.01

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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.