Home / 30,812.40-42,510.56-25,137.26

Finding the Fourth Proportional to 30,812.40, 42,510.56 and 25,137.26

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Solution

The fourth proportional to 30,812.40, 42,510.56 and 25,137.26 is: 34,680.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,812.40 : 42,510.56 = 25,137.26 : x
  2. Step 2: Convert to fraction form
    30,812.40/42,510.56 = 25,137.26/x
  3. Step 3: Cross multiply
    30,812.40x = 42,510.56 × 25,137.26
  4. Step 4: Simplify right side
    30,812.40x = 1,068,598,999.47
  5. Step 5: Solve for x
    x = 1,068,598,999.47/30,812.40
  6. Step 6: Final answer
    x = 34,680.81

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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.