Home / 21,411.28-32,110.08-10,877.68

Finding the Fourth Proportional to 21,411.28, 32,110.08 and 10,877.68

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Solution

The fourth proportional to 21,411.28, 32,110.08 and 10,877.68 is: 16,313.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,411.28 : 32,110.08 = 10,877.68 : x
  2. Step 2: Convert to fraction form
    21,411.28/32,110.08 = 10,877.68/x
  3. Step 3: Cross multiply
    21,411.28x = 32,110.08 × 10,877.68
  4. Step 4: Simplify right side
    21,411.28x = 349,283,175.01
  5. Step 5: Solve for x
    x = 349,283,175.01/21,411.28
  6. Step 6: Final answer
    x = 16,313.05

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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.