Home / 28,386.63-42,598.17-19,037.21

Finding the Fourth Proportional to 28,386.63, 42,598.17 and 19,037.21

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Solution

The fourth proportional to 28,386.63, 42,598.17 and 19,037.21 is: 28,568.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,386.63 : 42,598.17 = 19,037.21 : x
  2. Step 2: Convert to fraction form
    28,386.63/42,598.17 = 19,037.21/x
  3. Step 3: Cross multiply
    28,386.63x = 42,598.17 × 19,037.21
  4. Step 4: Simplify right side
    28,386.63x = 810,950,094.91
  5. Step 5: Solve for x
    x = 810,950,094.91/28,386.63
  6. Step 6: Final answer
    x = 28,568.03

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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.