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Finding the Fourth Proportional to 42,676.40, 64,014.60 and 14,974.40

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Solution

The fourth proportional to 42,676.40, 64,014.60 and 14,974.40 is: 22,461.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,676.40 : 64,014.60 = 14,974.40 : x
  2. Step 2: Convert to fraction form
    42,676.40/64,014.60 = 14,974.40/x
  3. Step 3: Cross multiply
    42,676.40x = 64,014.60 × 14,974.40
  4. Step 4: Simplify right side
    42,676.40x = 958,580,226.24
  5. Step 5: Solve for x
    x = 958,580,226.24/42,676.40
  6. Step 6: Final answer
    x = 22,461.60

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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.