Home / 30,376.40-45,564.60-10,656.95

Finding the Fourth Proportional to 30,376.40, 45,564.60 and 10,656.95

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Solution

The fourth proportional to 30,376.40, 45,564.60 and 10,656.95 is: 15,985.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,376.40 : 45,564.60 = 10,656.95 : x
  2. Step 2: Convert to fraction form
    30,376.40/45,564.60 = 10,656.95/x
  3. Step 3: Cross multiply
    30,376.40x = 45,564.60 × 10,656.95
  4. Step 4: Simplify right side
    30,376.40x = 485,579,663.97
  5. Step 5: Solve for x
    x = 485,579,663.97/30,376.40
  6. Step 6: Final answer
    x = 15,985.43

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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.