Home / 21,810.60-32,715.90-9,964.35

Finding the Fourth Proportional to 21,810.60, 32,715.90 and 9,964.35

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Solution

The fourth proportional to 21,810.60, 32,715.90 and 9,964.35 is: 14,946.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,810.60 : 32,715.90 = 9,964.35 : x
  2. Step 2: Convert to fraction form
    21,810.60/32,715.90 = 9,964.35/x
  3. Step 3: Cross multiply
    21,810.60x = 32,715.90 × 9,964.35
  4. Step 4: Simplify right side
    21,810.60x = 325,992,678.17
  5. Step 5: Solve for x
    x = 325,992,678.17/21,810.60
  6. Step 6: Final answer
    x = 14,946.53

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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.