Home / 47,856.15-71,778.74-12,798.54

Finding the Fourth Proportional to 47,856.15, 71,778.74 and 12,798.54

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Solution

The fourth proportional to 47,856.15, 71,778.74 and 12,798.54 is: 19,196.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,856.15 : 71,778.74 = 12,798.54 : x
  2. Step 2: Convert to fraction form
    47,856.15/71,778.74 = 12,798.54/x
  3. Step 3: Cross multiply
    47,856.15x = 71,778.74 × 12,798.54
  4. Step 4: Simplify right side
    47,856.15x = 918,663,075.04
  5. Step 5: Solve for x
    x = 918,663,075.04/47,856.15
  6. Step 6: Final answer
    x = 19,196.34

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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.