Home / 39,976.70-59,965.34-13,681.67

Finding the Fourth Proportional to 39,976.70, 59,965.34 and 13,681.67

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Solution

The fourth proportional to 39,976.70, 59,965.34 and 13,681.67 is: 20,522.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,976.70 : 59,965.34 = 13,681.67 : x
  2. Step 2: Convert to fraction form
    39,976.70/59,965.34 = 13,681.67/x
  3. Step 3: Cross multiply
    39,976.70x = 59,965.34 × 13,681.67
  4. Step 4: Simplify right side
    39,976.70x = 820,425,625.08
  5. Step 5: Solve for x
    x = 820,425,625.08/39,976.70
  6. Step 6: Final answer
    x = 20,522.60

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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.