Home / 40,438.85-60,658.27-12,358.98

Finding the Fourth Proportional to 40,438.85, 60,658.27 and 12,358.98

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Solution

The fourth proportional to 40,438.85, 60,658.27 and 12,358.98 is: 18,538.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,438.85 : 60,658.27 = 12,358.98 : x
  2. Step 2: Convert to fraction form
    40,438.85/60,658.27 = 12,358.98/x
  3. Step 3: Cross multiply
    40,438.85x = 60,658.27 × 12,358.98
  4. Step 4: Simplify right side
    40,438.85x = 749,674,314.87
  5. Step 5: Solve for x
    x = 749,674,314.87/40,438.85
  6. Step 6: Final answer
    x = 18,538.47

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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.