Home / 21,237.35-29,295.95-13,276.67

Finding the Fourth Proportional to 21,237.35, 29,295.95 and 13,276.67

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Solution

The fourth proportional to 21,237.35, 29,295.95 and 13,276.67 is: 18,314.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,237.35 : 29,295.95 = 13,276.67 : x
  2. Step 2: Convert to fraction form
    21,237.35/29,295.95 = 13,276.67/x
  3. Step 3: Cross multiply
    21,237.35x = 29,295.95 × 13,276.67
  4. Step 4: Simplify right side
    21,237.35x = 388,952,447.62
  5. Step 5: Solve for x
    x = 388,952,447.62/21,237.35
  6. Step 6: Final answer
    x = 18,314.55

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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.