Home / 20,842.08-31,250.76-8,368.02

Finding the Fourth Proportional to 20,842.08, 31,250.76 and 8,368.02

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Solution

The fourth proportional to 20,842.08, 31,250.76 and 8,368.02 is: 12,547.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,842.08 : 31,250.76 = 8,368.02 : x
  2. Step 2: Convert to fraction form
    20,842.08/31,250.76 = 8,368.02/x
  3. Step 3: Cross multiply
    20,842.08x = 31,250.76 × 8,368.02
  4. Step 4: Simplify right side
    20,842.08x = 261,506,984.70
  5. Step 5: Solve for x
    x = 261,506,984.70/20,842.08
  6. Step 6: Final answer
    x = 12,547.07

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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.