Home / 30,988.35-46,482.62-12,272.81

Finding the Fourth Proportional to 30,988.35, 46,482.62 and 12,272.81

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Solution

The fourth proportional to 30,988.35, 46,482.62 and 12,272.81 is: 18,409.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,988.35 : 46,482.62 = 12,272.81 : x
  2. Step 2: Convert to fraction form
    30,988.35/46,482.62 = 12,272.81/x
  3. Step 3: Cross multiply
    30,988.35x = 46,482.62 × 12,272.81
  4. Step 4: Simplify right side
    30,988.35x = 570,472,069.79
  5. Step 5: Solve for x
    x = 570,472,069.79/30,988.35
  6. Step 6: Final answer
    x = 18,409.24

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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.