Home / 30,854.42-46,298.08-13,087.78

Finding the Fourth Proportional to 30,854.42, 46,298.08 and 13,087.78

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Solution

The fourth proportional to 30,854.42, 46,298.08 and 13,087.78 is: 19,638.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,854.42 : 46,298.08 = 13,087.78 : x
  2. Step 2: Convert to fraction form
    30,854.42/46,298.08 = 13,087.78/x
  3. Step 3: Cross multiply
    30,854.42x = 46,298.08 × 13,087.78
  4. Step 4: Simplify right side
    30,854.42x = 605,938,986.08
  5. Step 5: Solve for x
    x = 605,938,986.08/30,854.42
  6. Step 6: Final answer
    x = 19,638.65

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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.