Home / 48,308.40-72,430.20-21,999.60

Finding the Fourth Proportional to 48,308.40, 72,430.20 and 21,999.60

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Solution

The fourth proportional to 48,308.40, 72,430.20 and 21,999.60 is: 32,984.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,308.40 : 72,430.20 = 21,999.60 : x
  2. Step 2: Convert to fraction form
    48,308.40/72,430.20 = 21,999.60/x
  3. Step 3: Cross multiply
    48,308.40x = 72,430.20 × 21,999.60
  4. Step 4: Simplify right side
    48,308.40x = 1,593,435,427.92
  5. Step 5: Solve for x
    x = 1,593,435,427.92/48,308.40
  6. Step 6: Final answer
    x = 32,984.65

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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.