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Finding the Fourth Proportional to 40,437.60, 60,658.20 and 13,783.20

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Solution

The fourth proportional to 40,437.60, 60,658.20 and 13,783.20 is: 20,675.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,437.60 : 60,658.20 = 13,783.20 : x
  2. Step 2: Convert to fraction form
    40,437.60/60,658.20 = 13,783.20/x
  3. Step 3: Cross multiply
    40,437.60x = 60,658.20 × 13,783.20
  4. Step 4: Simplify right side
    40,437.60x = 836,064,102.24
  5. Step 5: Solve for x
    x = 836,064,102.24/40,437.60
  6. Step 6: Final answer
    x = 20,675.41

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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.