Home / 30,860.80-46,291.20-10,086.40

Finding the Fourth Proportional to 30,860.80, 46,291.20 and 10,086.40

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Solution

The fourth proportional to 30,860.80, 46,291.20 and 10,086.40 is: 15,129.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,860.80 : 46,291.20 = 10,086.40 : x
  2. Step 2: Convert to fraction form
    30,860.80/46,291.20 = 10,086.40/x
  3. Step 3: Cross multiply
    30,860.80x = 46,291.20 × 10,086.40
  4. Step 4: Simplify right side
    30,860.80x = 466,911,559.68
  5. Step 5: Solve for x
    x = 466,911,559.68/30,860.80
  6. Step 6: Final answer
    x = 15,129.60

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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.