Home / 30,730.40-46,090.20-8,545.50

Finding the Fourth Proportional to 30,730.40, 46,090.20 and 8,545.50

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Solution

The fourth proportional to 30,730.40, 46,090.20 and 8,545.50 is: 12,816.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,730.40 : 46,090.20 = 8,545.50 : x
  2. Step 2: Convert to fraction form
    30,730.40/46,090.20 = 8,545.50/x
  3. Step 3: Cross multiply
    30,730.40x = 46,090.20 × 8,545.50
  4. Step 4: Simplify right side
    30,730.40x = 393,863,804.10
  5. Step 5: Solve for x
    x = 393,863,804.10/30,730.40
  6. Step 6: Final answer
    x = 12,816.75

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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.