Home / 31,210.80-46,816.20-28,683.60

Finding the Fourth Proportional to 31,210.80, 46,816.20 and 28,683.60

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Solution

The fourth proportional to 31,210.80, 46,816.20 and 28,683.60 is: 43,025.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,210.80 : 46,816.20 = 28,683.60 : x
  2. Step 2: Convert to fraction form
    31,210.80/46,816.20 = 28,683.60/x
  3. Step 3: Cross multiply
    31,210.80x = 46,816.20 × 28,683.60
  4. Step 4: Simplify right side
    31,210.80x = 1,342,857,154.32
  5. Step 5: Solve for x
    x = 1,342,857,154.32/31,210.80
  6. Step 6: Final answer
    x = 43,025.40

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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.