Home / 42,913.70-64,378.01-14,447.95

Finding the Fourth Proportional to 42,913.70, 64,378.01 and 14,447.95

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Solution

The fourth proportional to 42,913.70, 64,378.01 and 14,447.95 is: 21,674.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,913.70 : 64,378.01 = 14,447.95 : x
  2. Step 2: Convert to fraction form
    42,913.70/64,378.01 = 14,447.95/x
  3. Step 3: Cross multiply
    42,913.70x = 64,378.01 × 14,447.95
  4. Step 4: Simplify right side
    42,913.70x = 930,130,269.58
  5. Step 5: Solve for x
    x = 930,130,269.58/42,913.70
  6. Step 6: Final answer
    x = 21,674.44

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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.