Home / 22,428.61-30,953.90-12,358.07

Finding the Fourth Proportional to 22,428.61, 30,953.90 and 12,358.07

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Solution

The fourth proportional to 22,428.61, 30,953.90 and 12,358.07 is: 17,055.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,428.61 : 30,953.90 = 12,358.07 : x
  2. Step 2: Convert to fraction form
    22,428.61/30,953.90 = 12,358.07/x
  3. Step 3: Cross multiply
    22,428.61x = 30,953.90 × 12,358.07
  4. Step 4: Simplify right side
    22,428.61x = 382,530,462.97
  5. Step 5: Solve for x
    x = 382,530,462.97/22,428.61
  6. Step 6: Final answer
    x = 17,055.47

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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.