Home / 42,828.67-64,256.16-19,156.14

Finding the Fourth Proportional to 42,828.67, 64,256.16 and 19,156.14

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Solution

The fourth proportional to 42,828.67, 64,256.16 and 19,156.14 is: 28,740.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,828.67 : 64,256.16 = 19,156.14 : x
  2. Step 2: Convert to fraction form
    42,828.67/64,256.16 = 19,156.14/x
  3. Step 3: Cross multiply
    42,828.67x = 64,256.16 × 19,156.14
  4. Step 4: Simplify right side
    42,828.67x = 1,230,899,660.08
  5. Step 5: Solve for x
    x = 1,230,899,660.08/42,828.67
  6. Step 6: Final answer
    x = 28,740.08

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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.