Home / 30,326.16-45,483.78-12,808.32

Finding the Fourth Proportional to 30,326.16, 45,483.78 and 12,808.32

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Solution

The fourth proportional to 30,326.16, 45,483.78 and 12,808.32 is: 19,210.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,326.16 : 45,483.78 = 12,808.32 : x
  2. Step 2: Convert to fraction form
    30,326.16/45,483.78 = 12,808.32/x
  3. Step 3: Cross multiply
    30,326.16x = 45,483.78 × 12,808.32
  4. Step 4: Simplify right side
    30,326.16x = 582,570,809.05
  5. Step 5: Solve for x
    x = 582,570,809.05/30,326.16
  6. Step 6: Final answer
    x = 19,210.17

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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.