Home / 47,400.08-71,099.88-12,339.68

Finding the Fourth Proportional to 47,400.08, 71,099.88 and 12,339.68

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Solution

The fourth proportional to 47,400.08, 71,099.88 and 12,339.68 is: 18,509.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,400.08 : 71,099.88 = 12,339.68 : x
  2. Step 2: Convert to fraction form
    47,400.08/71,099.88 = 12,339.68/x
  3. Step 3: Cross multiply
    47,400.08x = 71,099.88 × 12,339.68
  4. Step 4: Simplify right side
    47,400.08x = 877,349,767.24
  5. Step 5: Solve for x
    x = 877,349,767.24/47,400.08
  6. Step 6: Final answer
    x = 18,509.46

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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.