Home / 30,977.16-42,726.68-19,047.04

Finding the Fourth Proportional to 30,977.16, 42,726.68 and 19,047.04

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Solution

The fourth proportional to 30,977.16, 42,726.68 and 19,047.04 is: 26,271.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,977.16 : 42,726.68 = 19,047.04 : x
  2. Step 2: Convert to fraction form
    30,977.16/42,726.68 = 19,047.04/x
  3. Step 3: Cross multiply
    30,977.16x = 42,726.68 × 19,047.04
  4. Step 4: Simplify right side
    30,977.16x = 813,816,783.03
  5. Step 5: Solve for x
    x = 813,816,783.03/30,977.16
  6. Step 6: Final answer
    x = 26,271.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.