Home / 31,888.23-43,999.08-18,458.67

Finding the Fourth Proportional to 31,888.23, 43,999.08 and 18,458.67

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Solution

The fourth proportional to 31,888.23, 43,999.08 and 18,458.67 is: 25,469.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,888.23 : 43,999.08 = 18,458.67 : x
  2. Step 2: Convert to fraction form
    31,888.23/43,999.08 = 18,458.67/x
  3. Step 3: Cross multiply
    31,888.23x = 43,999.08 × 18,458.67
  4. Step 4: Simplify right side
    31,888.23x = 812,164,498.02
  5. Step 5: Solve for x
    x = 812,164,498.02/31,888.23
  6. Step 6: Final answer
    x = 25,469.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.