Home / 39,965.40-59,956.20-13,671.18

Finding the Fourth Proportional to 39,965.40, 59,956.20 and 13,671.18

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Solution

The fourth proportional to 39,965.40, 59,956.20 and 13,671.18 is: 20,509.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,965.40 : 59,956.20 = 13,671.18 : x
  2. Step 2: Convert to fraction form
    39,965.40/59,956.20 = 13,671.18/x
  3. Step 3: Cross multiply
    39,965.40x = 59,956.20 × 13,671.18
  4. Step 4: Simplify right side
    39,965.40x = 819,672,002.32
  5. Step 5: Solve for x
    x = 819,672,002.32/39,965.40
  6. Step 6: Final answer
    x = 20,509.54

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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.