Home / 42,821.49-64,232.66-19,130.24

Finding the Fourth Proportional to 42,821.49, 64,232.66 and 19,130.24

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Solution

The fourth proportional to 42,821.49, 64,232.66 and 19,130.24 is: 28,695.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,821.49 : 64,232.66 = 19,130.24 : x
  2. Step 2: Convert to fraction form
    42,821.49/64,232.66 = 19,130.24/x
  3. Step 3: Cross multiply
    42,821.49x = 64,232.66 × 19,130.24
  4. Step 4: Simplify right side
    42,821.49x = 1,228,786,410.05
  5. Step 5: Solve for x
    x = 1,228,786,410.05/42,821.49
  6. Step 6: Final answer
    x = 28,695.55

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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.