Home / 47,005.50-70,511.90-15,840.75

Finding the Fourth Proportional to 47,005.50, 70,511.90 and 15,840.75

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Solution

The fourth proportional to 47,005.50, 70,511.90 and 15,840.75 is: 23,762.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,005.50 : 70,511.90 = 15,840.75 : x
  2. Step 2: Convert to fraction form
    47,005.50/70,511.90 = 15,840.75/x
  3. Step 3: Cross multiply
    47,005.50x = 70,511.90 × 15,840.75
  4. Step 4: Simplify right side
    47,005.50x = 1,116,961,300.72
  5. Step 5: Solve for x
    x = 1,116,961,300.72/47,005.50
  6. Step 6: Final answer
    x = 23,762.35

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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.