Home / 30,981.12-46,445.55-13,437.73

Finding the Fourth Proportional to 30,981.12, 46,445.55 and 13,437.73

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Solution

The fourth proportional to 30,981.12, 46,445.55 and 13,437.73 is: 20,145.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,981.12 : 46,445.55 = 13,437.73 : x
  2. Step 2: Convert to fraction form
    30,981.12/46,445.55 = 13,437.73/x
  3. Step 3: Cross multiply
    30,981.12x = 46,445.55 × 13,437.73
  4. Step 4: Simplify right side
    30,981.12x = 624,122,693.41
  5. Step 5: Solve for x
    x = 624,122,693.41/30,981.12
  6. Step 6: Final answer
    x = 20,145.26

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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.