Home / 19,172.99-26,470.85-14,688.42

Finding the Fourth Proportional to 19,172.99, 26,470.85 and 14,688.42

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Solution

The fourth proportional to 19,172.99, 26,470.85 and 14,688.42 is: 20,279.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,172.99 : 26,470.85 = 14,688.42 : x
  2. Step 2: Convert to fraction form
    19,172.99/26,470.85 = 14,688.42/x
  3. Step 3: Cross multiply
    19,172.99x = 26,470.85 × 14,688.42
  4. Step 4: Simplify right side
    19,172.99x = 388,814,889.11
  5. Step 5: Solve for x
    x = 388,814,889.11/19,172.99
  6. Step 6: Final answer
    x = 20,279.31

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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.