Home / 31,289.10-46,933.62-12,569.12

Finding the Fourth Proportional to 31,289.10, 46,933.62 and 12,569.12

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Solution

The fourth proportional to 31,289.10, 46,933.62 and 12,569.12 is: 18,853.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,289.10 : 46,933.62 = 12,569.12 : x
  2. Step 2: Convert to fraction form
    31,289.10/46,933.62 = 12,569.12/x
  3. Step 3: Cross multiply
    31,289.10x = 46,933.62 × 12,569.12
  4. Step 4: Simplify right side
    31,289.10x = 589,914,301.81
  5. Step 5: Solve for x
    x = 589,914,301.81/31,289.10
  6. Step 6: Final answer
    x = 18,853.67

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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.