Home / 28,335.03-42,511.77-13,545.09

Finding the Fourth Proportional to 28,335.03, 42,511.77 and 13,545.09

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Solution

The fourth proportional to 28,335.03, 42,511.77 and 13,545.09 is: 20,322.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,335.03 : 42,511.77 = 13,545.09 : x
  2. Step 2: Convert to fraction form
    28,335.03/42,511.77 = 13,545.09/x
  3. Step 3: Cross multiply
    28,335.03x = 42,511.77 × 13,545.09
  4. Step 4: Simplify right side
    28,335.03x = 575,825,750.71
  5. Step 5: Solve for x
    x = 575,825,750.71/28,335.03
  6. Step 6: Final answer
    x = 20,322.04

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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.