Home / 34,045.18-46,969.42-21,118.46

Finding the Fourth Proportional to 34,045.18, 46,969.42 and 21,118.46

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Solution

The fourth proportional to 34,045.18, 46,969.42 and 21,118.46 is: 29,135.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,045.18 : 46,969.42 = 21,118.46 : x
  2. Step 2: Convert to fraction form
    34,045.18/46,969.42 = 21,118.46/x
  3. Step 3: Cross multiply
    34,045.18x = 46,969.42 × 21,118.46
  4. Step 4: Simplify right side
    34,045.18x = 991,921,569.45
  5. Step 5: Solve for x
    x = 991,921,569.45/34,045.18
  6. Step 6: Final answer
    x = 29,135.45

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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.