Home / 31,795.19-47,693.69-8,421.63

Finding the Fourth Proportional to 31,795.19, 47,693.69 and 8,421.63

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Solution

The fourth proportional to 31,795.19, 47,693.69 and 8,421.63 is: 12,632.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,795.19 : 47,693.69 = 8,421.63 : x
  2. Step 2: Convert to fraction form
    31,795.19/47,693.69 = 8,421.63/x
  3. Step 3: Cross multiply
    31,795.19x = 47,693.69 × 8,421.63
  4. Step 4: Simplify right side
    31,795.19x = 401,658,610.51
  5. Step 5: Solve for x
    x = 401,658,610.51/31,795.19
  6. Step 6: Final answer
    x = 12,632.68

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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.