Home / 22,430.99-30,954.61-12,359.20

Finding the Fourth Proportional to 22,430.99, 30,954.61 and 12,359.20

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Solution

The fourth proportional to 22,430.99, 30,954.61 and 12,359.20 is: 17,055.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,430.99 : 30,954.61 = 12,359.20 : x
  2. Step 2: Convert to fraction form
    22,430.99/30,954.61 = 12,359.20/x
  3. Step 3: Cross multiply
    22,430.99x = 30,954.61 × 12,359.20
  4. Step 4: Simplify right side
    22,430.99x = 382,574,169.42
  5. Step 5: Solve for x
    x = 382,574,169.42/22,430.99
  6. Step 6: Final answer
    x = 17,055.61

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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.