Home / 21,623.79-32,439.60-9,783.13

Finding the Fourth Proportional to 21,623.79, 32,439.60 and 9,783.13

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Solution

The fourth proportional to 21,623.79, 32,439.60 and 9,783.13 is: 14,676.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,623.79 : 32,439.60 = 9,783.13 : x
  2. Step 2: Convert to fraction form
    21,623.79/32,439.60 = 9,783.13/x
  3. Step 3: Cross multiply
    21,623.79x = 32,439.60 × 9,783.13
  4. Step 4: Simplify right side
    21,623.79x = 317,360,823.95
  5. Step 5: Solve for x
    x = 317,360,823.95/21,623.79
  6. Step 6: Final answer
    x = 14,676.47

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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.