Home / 30,979.46-46,637.78-28,223.84

Finding the Fourth Proportional to 30,979.46, 46,637.78 and 28,223.84

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Solution

The fourth proportional to 30,979.46, 46,637.78 and 28,223.84 is: 42,489.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,979.46 : 46,637.78 = 28,223.84 : x
  2. Step 2: Convert to fraction form
    30,979.46/46,637.78 = 28,223.84/x
  3. Step 3: Cross multiply
    30,979.46x = 46,637.78 × 28,223.84
  4. Step 4: Simplify right side
    30,979.46x = 1,316,297,216.15
  5. Step 5: Solve for x
    x = 1,316,297,216.15/30,979.46
  6. Step 6: Final answer
    x = 42,489.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.