Home / 34,725.03-47,918.06-20,385.45

Finding the Fourth Proportional to 34,725.03, 47,918.06 and 20,385.45

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Solution

The fourth proportional to 34,725.03, 47,918.06 and 20,385.45 is: 28,130.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,725.03 : 47,918.06 = 20,385.45 : x
  2. Step 2: Convert to fraction form
    34,725.03/47,918.06 = 20,385.45/x
  3. Step 3: Cross multiply
    34,725.03x = 47,918.06 × 20,385.45
  4. Step 4: Simplify right side
    34,725.03x = 976,831,114.30
  5. Step 5: Solve for x
    x = 976,831,114.30/34,725.03
  6. Step 6: Final answer
    x = 28,130.46

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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.