Home / 30,868.92-46,115.64-19,686.60

Finding the Fourth Proportional to 30,868.92, 46,115.64 and 19,686.60

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Solution

The fourth proportional to 30,868.92, 46,115.64 and 19,686.60 is: 29,410.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,868.92 : 46,115.64 = 19,686.60 : x
  2. Step 2: Convert to fraction form
    30,868.92/46,115.64 = 19,686.60/x
  3. Step 3: Cross multiply
    30,868.92x = 46,115.64 × 19,686.60
  4. Step 4: Simplify right side
    30,868.92x = 907,860,158.42
  5. Step 5: Solve for x
    x = 907,860,158.42/30,868.92
  6. Step 6: Final answer
    x = 29,410.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.