Home / 14,580.20-21,875.70-4,719.80

Finding the Fourth Proportional to 14,580.20, 21,875.70 and 4,719.80

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Solution

The fourth proportional to 14,580.20, 21,875.70 and 4,719.80 is: 7,081.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,580.20 : 21,875.70 = 4,719.80 : x
  2. Step 2: Convert to fraction form
    14,580.20/21,875.70 = 4,719.80/x
  3. Step 3: Cross multiply
    14,580.20x = 21,875.70 × 4,719.80
  4. Step 4: Simplify right side
    14,580.20x = 103,248,928.86
  5. Step 5: Solve for x
    x = 103,248,928.86/14,580.20
  6. Step 6: Final answer
    x = 7,081.45

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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.