Home / 21,065.76-31,598.68-5,483.36

Finding the Fourth Proportional to 21,065.76, 31,598.68 and 5,483.36

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Solution

The fourth proportional to 21,065.76, 31,598.68 and 5,483.36 is: 8,225.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,065.76 : 31,598.68 = 5,483.36 : x
  2. Step 2: Convert to fraction form
    21,065.76/31,598.68 = 5,483.36/x
  3. Step 3: Cross multiply
    21,065.76x = 31,598.68 × 5,483.36
  4. Step 4: Simplify right side
    21,065.76x = 173,266,937.96
  5. Step 5: Solve for x
    x = 173,266,937.96/21,065.76
  6. Step 6: Final answer
    x = 8,225.05

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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.