Home / 42,921.63-64,393.38-16,278.50

Finding the Fourth Proportional to 42,921.63, 64,393.38 and 16,278.50

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Solution

The fourth proportional to 42,921.63, 64,393.38 and 16,278.50 is: 24,421.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,921.63 : 64,393.38 = 16,278.50 : x
  2. Step 2: Convert to fraction form
    42,921.63/64,393.38 = 16,278.50/x
  3. Step 3: Cross multiply
    42,921.63x = 64,393.38 × 16,278.50
  4. Step 4: Simplify right side
    42,921.63x = 1,048,227,554.94
  5. Step 5: Solve for x
    x = 1,048,227,554.94/42,921.63
  6. Step 6: Final answer
    x = 24,421.90

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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.