Home / 70,848.30-106,289.88-20,928.15

Finding the Fourth Proportional to 70,848.30, 106,289.88 and 20,928.15

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Solution

The fourth proportional to 70,848.30, 106,289.88 and 20,928.15 is: 31,397.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,848.30 : 106,289.88 = 20,928.15 : x
  2. Step 2: Convert to fraction form
    70,848.30/106,289.88 = 20,928.15/x
  3. Step 3: Cross multiply
    70,848.30x = 106,289.88 × 20,928.15
  4. Step 4: Simplify right side
    70,848.30x = 2,224,450,552.12
  5. Step 5: Solve for x
    x = 2,224,450,552.12/70,848.30
  6. Step 6: Final answer
    x = 31,397.37

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1.5x scale

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.