Home / 28,443.05-42,632.77-10,656.59

Finding the Fourth Proportional to 28,443.05, 42,632.77 and 10,656.59

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Solution

The fourth proportional to 28,443.05, 42,632.77 and 10,656.59 is: 15,972.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,443.05 : 42,632.77 = 10,656.59 : x
  2. Step 2: Convert to fraction form
    28,443.05/42,632.77 = 10,656.59/x
  3. Step 3: Cross multiply
    28,443.05x = 42,632.77 × 10,656.59
  4. Step 4: Simplify right side
    28,443.05x = 454,319,950.45
  5. Step 5: Solve for x
    x = 454,319,950.45/28,443.05
  6. Step 6: Final answer
    x = 15,972.97

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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.