Home / 21,688.03-32,536.83-9,218.71

Finding the Fourth Proportional to 21,688.03, 32,536.83 and 9,218.71

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Solution

The fourth proportional to 21,688.03, 32,536.83 and 9,218.71 is: 13,830.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,688.03 : 32,536.83 = 9,218.71 : x
  2. Step 2: Convert to fraction form
    21,688.03/32,536.83 = 9,218.71/x
  3. Step 3: Cross multiply
    21,688.03x = 32,536.83 × 9,218.71
  4. Step 4: Simplify right side
    21,688.03x = 299,947,518.75
  5. Step 5: Solve for x
    x = 299,947,518.75/21,688.03
  6. Step 6: Final answer
    x = 13,830.10

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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.