Home / 28,579.60-42,869.40-26,441.20

Finding the Fourth Proportional to 28,579.60, 42,869.40 and 26,441.20

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Solution

The fourth proportional to 28,579.60, 42,869.40 and 26,441.20 is: 39,661.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,579.60 : 42,869.40 = 26,441.20 : x
  2. Step 2: Convert to fraction form
    28,579.60/42,869.40 = 26,441.20/x
  3. Step 3: Cross multiply
    28,579.60x = 42,869.40 × 26,441.20
  4. Step 4: Simplify right side
    28,579.60x = 1,133,518,379.28
  5. Step 5: Solve for x
    x = 1,133,518,379.28/28,579.60
  6. Step 6: Final answer
    x = 39,661.80

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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.