Home / 48,277.20-72,415.80-13,220.40

Finding the Fourth Proportional to 48,277.20, 72,415.80 and 13,220.40

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Solution

The fourth proportional to 48,277.20, 72,415.80 and 13,220.40 is: 19,830.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,277.20 : 72,415.80 = 13,220.40 : x
  2. Step 2: Convert to fraction form
    48,277.20/72,415.80 = 13,220.40/x
  3. Step 3: Cross multiply
    48,277.20x = 72,415.80 × 13,220.40
  4. Step 4: Simplify right side
    48,277.20x = 957,365,842.32
  5. Step 5: Solve for x
    x = 957,365,842.32/48,277.20
  6. Step 6: Final answer
    x = 19,830.60

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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.