Home / 21,355.05-32,035.91-10,259.67

Finding the Fourth Proportional to 21,355.05, 32,035.91 and 10,259.67

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Solution

The fourth proportional to 21,355.05, 32,035.91 and 10,259.67 is: 15,391.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,355.05 : 32,035.91 = 10,259.67 : x
  2. Step 2: Convert to fraction form
    21,355.05/32,035.91 = 10,259.67/x
  3. Step 3: Cross multiply
    21,355.05x = 32,035.91 × 10,259.67
  4. Step 4: Simplify right side
    21,355.05x = 328,677,813.45
  5. Step 5: Solve for x
    x = 328,677,813.45/21,355.05
  6. Step 6: Final answer
    x = 15,391.10

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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.