Home / 42,377.21-58,488.55-28,037.78

Finding the Fourth Proportional to 42,377.21, 58,488.55 and 28,037.78

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Solution

The fourth proportional to 42,377.21, 58,488.55 and 28,037.78 is: 38,697.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,377.21 : 58,488.55 = 28,037.78 : x
  2. Step 2: Convert to fraction form
    42,377.21/58,488.55 = 28,037.78/x
  3. Step 3: Cross multiply
    42,377.21x = 58,488.55 × 28,037.78
  4. Step 4: Simplify right side
    42,377.21x = 1,639,888,954.21
  5. Step 5: Solve for x
    x = 1,639,888,954.21/42,377.21
  6. Step 6: Final answer
    x = 38,697.43

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1.5x scale

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.