Home / 34,386.43-47,461.71-20,965.08

Finding the Fourth Proportional to 34,386.43, 47,461.71 and 20,965.08

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Solution

The fourth proportional to 34,386.43, 47,461.71 and 20,965.08 is: 28,936.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,386.43 : 47,461.71 = 20,965.08 : x
  2. Step 2: Convert to fraction form
    34,386.43/47,461.71 = 20,965.08/x
  3. Step 3: Cross multiply
    34,386.43x = 47,461.71 × 20,965.08
  4. Step 4: Simplify right side
    34,386.43x = 995,038,803.69
  5. Step 5: Solve for x
    x = 995,038,803.69/34,386.43
  6. Step 6: Final answer
    x = 28,936.96

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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.