Home / 38,400.90-57,603.15-12,107.67

Finding the Fourth Proportional to 38,400.90, 57,603.15 and 12,107.67

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Solution

The fourth proportional to 38,400.90, 57,603.15 and 12,107.67 is: 18,162.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,400.90 : 57,603.15 = 12,107.67 : x
  2. Step 2: Convert to fraction form
    38,400.90/57,603.15 = 12,107.67/x
  3. Step 3: Cross multiply
    38,400.90x = 57,603.15 × 12,107.67
  4. Step 4: Simplify right side
    38,400.90x = 697,439,931.16
  5. Step 5: Solve for x
    x = 697,439,931.16/38,400.90
  6. Step 6: Final answer
    x = 18,162.07

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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.