Home / 48,128.16-72,204.60-20,038.86

Finding the Fourth Proportional to 48,128.16, 72,204.60 and 20,038.86

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Solution

The fourth proportional to 48,128.16, 72,204.60 and 20,038.86 is: 30,063.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,128.16 : 72,204.60 = 20,038.86 : x
  2. Step 2: Convert to fraction form
    48,128.16/72,204.60 = 20,038.86/x
  3. Step 3: Cross multiply
    48,128.16x = 72,204.60 × 20,038.86
  4. Step 4: Simplify right side
    48,128.16x = 1,446,897,870.76
  5. Step 5: Solve for x
    x = 1,446,897,870.76/48,128.16
  6. Step 6: Final answer
    x = 30,063.44

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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.