Home / 42,678.99-64,026.72-16,381.68

Finding the Fourth Proportional to 42,678.99, 64,026.72 and 16,381.68

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Solution

The fourth proportional to 42,678.99, 64,026.72 and 16,381.68 is: 24,575.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,678.99 : 64,026.72 = 16,381.68 : x
  2. Step 2: Convert to fraction form
    42,678.99/64,026.72 = 16,381.68/x
  3. Step 3: Cross multiply
    42,678.99x = 64,026.72 × 16,381.68
  4. Step 4: Simplify right side
    42,678.99x = 1,048,865,238.49
  5. Step 5: Solve for x
    x = 1,048,865,238.49/42,678.99
  6. Step 6: Final answer
    x = 24,575.68

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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.