Home / 30,434.34-45,569.49-19,878.22

Finding the Fourth Proportional to 30,434.34, 45,569.49 and 19,878.22

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Solution

The fourth proportional to 30,434.34, 45,569.49 and 19,878.22 is: 29,763.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,434.34 : 45,569.49 = 19,878.22 : x
  2. Step 2: Convert to fraction form
    30,434.34/45,569.49 = 19,878.22/x
  3. Step 3: Cross multiply
    30,434.34x = 45,569.49 × 19,878.22
  4. Step 4: Simplify right side
    30,434.34x = 905,840,347.51
  5. Step 5: Solve for x
    x = 905,840,347.51/30,434.34
  6. Step 6: Final answer
    x = 29,763.76

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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.