Home / 30,780.74-46,152.61-12,038.42

Finding the Fourth Proportional to 30,780.74, 46,152.61 and 12,038.42

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Solution

The fourth proportional to 30,780.74, 46,152.61 and 12,038.42 is: 18,050.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,780.74 : 46,152.61 = 12,038.42 : x
  2. Step 2: Convert to fraction form
    30,780.74/46,152.61 = 12,038.42/x
  3. Step 3: Cross multiply
    30,780.74x = 46,152.61 × 12,038.42
  4. Step 4: Simplify right side
    30,780.74x = 555,604,588.56
  5. Step 5: Solve for x
    x = 555,604,588.56/30,780.74
  6. Step 6: Final answer
    x = 18,050.40

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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.