Home / 40,556.16-60,840.08-12,478.58

Finding the Fourth Proportional to 40,556.16, 60,840.08 and 12,478.58

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Solution

The fourth proportional to 40,556.16, 60,840.08 and 12,478.58 is: 18,719.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,556.16 : 60,840.08 = 12,478.58 : x
  2. Step 2: Convert to fraction form
    40,556.16/60,840.08 = 12,478.58/x
  3. Step 3: Cross multiply
    40,556.16x = 60,840.08 × 12,478.58
  4. Step 4: Simplify right side
    40,556.16x = 759,197,805.49
  5. Step 5: Solve for x
    x = 759,197,805.49/40,556.16
  6. Step 6: Final answer
    x = 18,719.67

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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.