Home / 28,210.32-42,306.96-8,483.64

Finding the Fourth Proportional to 28,210.32, 42,306.96 and 8,483.64

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Solution

The fourth proportional to 28,210.32, 42,306.96 and 8,483.64 is: 12,722.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,210.32 : 42,306.96 = 8,483.64 : x
  2. Step 2: Convert to fraction form
    28,210.32/42,306.96 = 8,483.64/x
  3. Step 3: Cross multiply
    28,210.32x = 42,306.96 × 8,483.64
  4. Step 4: Simplify right side
    28,210.32x = 358,917,018.13
  5. Step 5: Solve for x
    x = 358,917,018.13/28,210.32
  6. Step 6: Final answer
    x = 12,722.90

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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.