Home / 30,670.71-46,023.93-12,900.09

Finding the Fourth Proportional to 30,670.71, 46,023.93 and 12,900.09

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Solution

The fourth proportional to 30,670.71, 46,023.93 and 12,900.09 is: 19,357.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,670.71 : 46,023.93 = 12,900.09 : x
  2. Step 2: Convert to fraction form
    30,670.71/46,023.93 = 12,900.09/x
  3. Step 3: Cross multiply
    30,670.71x = 46,023.93 × 12,900.09
  4. Step 4: Simplify right side
    30,670.71x = 593,712,839.15
  5. Step 5: Solve for x
    x = 593,712,839.15/30,670.71
  6. Step 6: Final answer
    x = 19,357.65

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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.