Home / 30,126.99-45,131.67-14,309.52

Finding the Fourth Proportional to 30,126.99, 45,131.67 and 14,309.52

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Solution

The fourth proportional to 30,126.99, 45,131.67 and 14,309.52 is: 21,436.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,126.99 : 45,131.67 = 14,309.52 : x
  2. Step 2: Convert to fraction form
    30,126.99/45,131.67 = 14,309.52/x
  3. Step 3: Cross multiply
    30,126.99x = 45,131.67 × 14,309.52
  4. Step 4: Simplify right side
    30,126.99x = 645,812,534.50
  5. Step 5: Solve for x
    x = 645,812,534.50/30,126.99
  6. Step 6: Final answer
    x = 21,436.34

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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.