Home / 22,341.90-30,829.48-13,389.16

Finding the Fourth Proportional to 22,341.90, 30,829.48 and 13,389.16

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Solution

The fourth proportional to 22,341.90, 30,829.48 and 13,389.16 is: 18,475.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,341.90 : 30,829.48 = 13,389.16 : x
  2. Step 2: Convert to fraction form
    22,341.90/30,829.48 = 13,389.16/x
  3. Step 3: Cross multiply
    22,341.90x = 30,829.48 × 13,389.16
  4. Step 4: Simplify right side
    22,341.90x = 412,780,840.44
  5. Step 5: Solve for x
    x = 412,780,840.44/22,341.90
  6. Step 6: Final answer
    x = 18,475.64

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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.