Home / 30,258.40-45,376.80-10,537.60

Finding the Fourth Proportional to 30,258.40, 45,376.80 and 10,537.60

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Solution

The fourth proportional to 30,258.40, 45,376.80 and 10,537.60 is: 15,802.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,258.40 : 45,376.80 = 10,537.60 : x
  2. Step 2: Convert to fraction form
    30,258.40/45,376.80 = 10,537.60/x
  3. Step 3: Cross multiply
    30,258.40x = 45,376.80 × 10,537.60
  4. Step 4: Simplify right side
    30,258.40x = 478,162,567.68
  5. Step 5: Solve for x
    x = 478,162,567.68/30,258.40
  6. Step 6: Final answer
    x = 15,802.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.