Home / 37,860.69-56,780.09-12,900.18

Finding the Fourth Proportional to 37,860.69, 56,780.09 and 12,900.18

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Solution

The fourth proportional to 37,860.69, 56,780.09 and 12,900.18 is: 19,346.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,860.69 : 56,780.09 = 12,900.18 : x
  2. Step 2: Convert to fraction form
    37,860.69/56,780.09 = 12,900.18/x
  3. Step 3: Cross multiply
    37,860.69x = 56,780.09 × 12,900.18
  4. Step 4: Simplify right side
    37,860.69x = 732,473,381.42
  5. Step 5: Solve for x
    x = 732,473,381.42/37,860.69
  6. Step 6: Final answer
    x = 19,346.54

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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.