Home / 47,209.20-70,813.44-19,128.84

Finding the Fourth Proportional to 47,209.20, 70,813.44 and 19,128.84

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Solution

The fourth proportional to 47,209.20, 70,813.44 and 19,128.84 is: 28,693.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,209.20 : 70,813.44 = 19,128.84 : x
  2. Step 2: Convert to fraction form
    47,209.20/70,813.44 = 19,128.84/x
  3. Step 3: Cross multiply
    47,209.20x = 70,813.44 × 19,128.84
  4. Step 4: Simplify right side
    47,209.20x = 1,354,578,963.61
  5. Step 5: Solve for x
    x = 1,354,578,963.61/47,209.20
  6. Step 6: Final answer
    x = 28,693.11

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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.