Home / 28,501.83-42,760.58-11,869.65

Finding the Fourth Proportional to 28,501.83, 42,760.58 and 11,869.65

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Solution

The fourth proportional to 28,501.83, 42,760.58 and 11,869.65 is: 17,807.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,501.83 : 42,760.58 = 11,869.65 : x
  2. Step 2: Convert to fraction form
    28,501.83/42,760.58 = 11,869.65/x
  3. Step 3: Cross multiply
    28,501.83x = 42,760.58 × 11,869.65
  4. Step 4: Simplify right side
    28,501.83x = 507,553,059.05
  5. Step 5: Solve for x
    x = 507,553,059.05/28,501.83
  6. Step 6: Final answer
    x = 17,807.74

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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.