Home / 31,000.52-42,780.76-16,853.37

Finding the Fourth Proportional to 31,000.52, 42,780.76 and 16,853.37

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Solution

The fourth proportional to 31,000.52, 42,780.76 and 16,853.37 is: 23,257.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,000.52 : 42,780.76 = 16,853.37 : x
  2. Step 2: Convert to fraction form
    31,000.52/42,780.76 = 16,853.37/x
  3. Step 3: Cross multiply
    31,000.52x = 42,780.76 × 16,853.37
  4. Step 4: Simplify right side
    31,000.52x = 720,999,774.60
  5. Step 5: Solve for x
    x = 720,999,774.60/31,000.52
  6. Step 6: Final answer
    x = 23,257.67

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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.