Home / 28,008.40-42,013.76-13,029.58

Finding the Fourth Proportional to 28,008.40, 42,013.76 and 13,029.58

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Solution

The fourth proportional to 28,008.40, 42,013.76 and 13,029.58 is: 19,544.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,008.40 : 42,013.76 = 13,029.58 : x
  2. Step 2: Convert to fraction form
    28,008.40/42,013.76 = 13,029.58/x
  3. Step 3: Cross multiply
    28,008.40x = 42,013.76 × 13,029.58
  4. Step 4: Simplify right side
    28,008.40x = 547,421,647.02
  5. Step 5: Solve for x
    x = 547,421,647.02/28,008.40
  6. Step 6: Final answer
    x = 19,544.91

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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.