Home / 42,721.04-58,977.96-28,598

Finding the Fourth Proportional to 42,721.04, 58,977.96 and 28,598

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Solution

The fourth proportional to 42,721.04, 58,977.96 and 28,598 is: 39,480.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,721.04 : 58,977.96 = 28,598 : x
  2. Step 2: Convert to fraction form
    42,721.04/58,977.96 = 28,598/x
  3. Step 3: Cross multiply
    42,721.04x = 58,977.96 × 28,598
  4. Step 4: Simplify right side
    42,721.04x = 1,686,651,700.08
  5. Step 5: Solve for x
    x = 1,686,651,700.08/42,721.04
  6. Step 6: Final answer
    x = 39,480.59

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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.