Home / 31,929.65-47,894.48-13,189.09

Finding the Fourth Proportional to 31,929.65, 47,894.48 and 13,189.09

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Solution

The fourth proportional to 31,929.65, 47,894.48 and 13,189.09 is: 19,783.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,929.65 : 47,894.48 = 13,189.09 : x
  2. Step 2: Convert to fraction form
    31,929.65/47,894.48 = 13,189.09/x
  3. Step 3: Cross multiply
    31,929.65x = 47,894.48 × 13,189.09
  4. Step 4: Simplify right side
    31,929.65x = 631,684,607.22
  5. Step 5: Solve for x
    x = 631,684,607.22/31,929.65
  6. Step 6: Final answer
    x = 19,783.64

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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.