Home / 22,312.74-30,789.30-13,360.02

Finding the Fourth Proportional to 22,312.74, 30,789.30 and 13,360.02

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Solution

The fourth proportional to 22,312.74, 30,789.30 and 13,360.02 is: 18,435.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,312.74 : 30,789.30 = 13,360.02 : x
  2. Step 2: Convert to fraction form
    22,312.74/30,789.30 = 13,360.02/x
  3. Step 3: Cross multiply
    22,312.74x = 30,789.30 × 13,360.02
  4. Step 4: Simplify right side
    22,312.74x = 411,345,663.79
  5. Step 5: Solve for x
    x = 411,345,663.79/22,312.74
  6. Step 6: Final answer
    x = 18,435.46

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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.