Home / 21,426.84-32,152.41-11,565.90

Finding the Fourth Proportional to 21,426.84, 32,152.41 and 11,565.90

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Solution

The fourth proportional to 21,426.84, 32,152.41 and 11,565.90 is: 17,355.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,426.84 : 32,152.41 = 11,565.90 : x
  2. Step 2: Convert to fraction form
    21,426.84/32,152.41 = 11,565.90/x
  3. Step 3: Cross multiply
    21,426.84x = 32,152.41 × 11,565.90
  4. Step 4: Simplify right side
    21,426.84x = 371,871,558.82
  5. Step 5: Solve for x
    x = 371,871,558.82/21,426.84
  6. Step 6: Final answer
    x = 17,355.41

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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.