Home / 28,900.13-43,358.93-20,482.91

Finding the Fourth Proportional to 28,900.13, 43,358.93 and 20,482.91

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Solution

The fourth proportional to 28,900.13, 43,358.93 and 20,482.91 is: 30,730.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,900.13 : 43,358.93 = 20,482.91 : x
  2. Step 2: Convert to fraction form
    28,900.13/43,358.93 = 20,482.91/x
  3. Step 3: Cross multiply
    28,900.13x = 43,358.93 × 20,482.91
  4. Step 4: Simplify right side
    28,900.13x = 888,116,981.08
  5. Step 5: Solve for x
    x = 888,116,981.08/28,900.13
  6. Step 6: Final answer
    x = 30,730.56

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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.