Home / 22,445.32-30,970.92-13,490.68

Finding the Fourth Proportional to 22,445.32, 30,970.92 and 13,490.68

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Solution

The fourth proportional to 22,445.32, 30,970.92 and 13,490.68 is: 18,614.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,445.32 : 30,970.92 = 13,490.68 : x
  2. Step 2: Convert to fraction form
    22,445.32/30,970.92 = 13,490.68/x
  3. Step 3: Cross multiply
    22,445.32x = 30,970.92 × 13,490.68
  4. Step 4: Simplify right side
    22,445.32x = 417,818,771.03
  5. Step 5: Solve for x
    x = 417,818,771.03/22,445.32
  6. Step 6: Final answer
    x = 18,614.96

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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.