Home / 39,714.84-59,579.12-13,419.76

Finding the Fourth Proportional to 39,714.84, 59,579.12 and 13,419.76

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Solution

The fourth proportional to 39,714.84, 59,579.12 and 13,419.76 is: 20,131.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,714.84 : 59,579.12 = 13,419.76 : x
  2. Step 2: Convert to fraction form
    39,714.84/59,579.12 = 13,419.76/x
  3. Step 3: Cross multiply
    39,714.84x = 59,579.12 × 13,419.76
  4. Step 4: Simplify right side
    39,714.84x = 799,537,491.41
  5. Step 5: Solve for x
    x = 799,537,491.41/39,714.84
  6. Step 6: Final answer
    x = 20,131.96

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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.