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Finding the Fourth Proportional to 46,989.90, 70,468.46 and 18,902.67

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Solution

The fourth proportional to 46,989.90, 70,468.46 and 18,902.67 is: 28,347.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,989.90 : 70,468.46 = 18,902.67 : x
  2. Step 2: Convert to fraction form
    46,989.90/70,468.46 = 18,902.67/x
  3. Step 3: Cross multiply
    46,989.90x = 70,468.46 × 18,902.67
  4. Step 4: Simplify right side
    46,989.90x = 1,332,041,950.27
  5. Step 5: Solve for x
    x = 1,332,041,950.27/46,989.90
  6. Step 6: Final answer
    x = 28,347.41

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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.