Home / 48,020.58-72,030.86-12,960.18

Finding the Fourth Proportional to 48,020.58, 72,030.86 and 12,960.18

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Solution

The fourth proportional to 48,020.58, 72,030.86 and 12,960.18 is: 19,440.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,020.58 : 72,030.86 = 12,960.18 : x
  2. Step 2: Convert to fraction form
    48,020.58/72,030.86 = 12,960.18/x
  3. Step 3: Cross multiply
    48,020.58x = 72,030.86 × 12,960.18
  4. Step 4: Simplify right side
    48,020.58x = 933,532,911.15
  5. Step 5: Solve for x
    x = 933,532,911.15/48,020.58
  6. Step 6: Final answer
    x = 19,440.27

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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.