Home / 32,698.55-45,112.40-21,374.58

Finding the Fourth Proportional to 32,698.55, 45,112.40 and 21,374.58

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Solution

The fourth proportional to 32,698.55, 45,112.40 and 21,374.58 is: 29,489.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,698.55 : 45,112.40 = 21,374.58 : x
  2. Step 2: Convert to fraction form
    32,698.55/45,112.40 = 21,374.58/x
  3. Step 3: Cross multiply
    32,698.55x = 45,112.40 × 21,374.58
  4. Step 4: Simplify right side
    32,698.55x = 964,258,495.92
  5. Step 5: Solve for x
    x = 964,258,495.92/32,698.55
  6. Step 6: Final answer
    x = 29,489.34

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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.