Home / 40,283.56-55,647.36-38,315.32

Finding the Fourth Proportional to 40,283.56, 55,647.36 and 38,315.32

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Solution

The fourth proportional to 40,283.56, 55,647.36 and 38,315.32 is: 52,928.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,283.56 : 55,647.36 = 38,315.32 : x
  2. Step 2: Convert to fraction form
    40,283.56/55,647.36 = 38,315.32/x
  3. Step 3: Cross multiply
    40,283.56x = 55,647.36 × 38,315.32
  4. Step 4: Simplify right side
    40,283.56x = 2,132,146,405.56
  5. Step 5: Solve for x
    x = 2,132,146,405.56/40,283.56
  6. Step 6: Final answer
    x = 52,928.45

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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.