Home / 15,573.87-21,491.53-14,319.99

Finding the Fourth Proportional to 15,573.87, 21,491.53 and 14,319.99

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Solution

The fourth proportional to 15,573.87, 21,491.53 and 14,319.99 is: 19,761.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,573.87 : 21,491.53 = 14,319.99 : x
  2. Step 2: Convert to fraction form
    15,573.87/21,491.53 = 14,319.99/x
  3. Step 3: Cross multiply
    15,573.87x = 21,491.53 × 14,319.99
  4. Step 4: Simplify right side
    15,573.87x = 307,758,458.88
  5. Step 5: Solve for x
    x = 307,758,458.88/15,573.87
  6. Step 6: Final answer
    x = 19,761.21

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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.