Home / 21,411.40-32,117.10-11,542.60

Finding the Fourth Proportional to 21,411.40, 32,117.10 and 11,542.60

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Solution

The fourth proportional to 21,411.40, 32,117.10 and 11,542.60 is: 17,313.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,411.40 : 32,117.10 = 11,542.60 : x
  2. Step 2: Convert to fraction form
    21,411.40/32,117.10 = 11,542.60/x
  3. Step 3: Cross multiply
    21,411.40x = 32,117.10 × 11,542.60
  4. Step 4: Simplify right side
    21,411.40x = 370,714,838.46
  5. Step 5: Solve for x
    x = 370,714,838.46/21,411.40
  6. Step 6: Final answer
    x = 17,313.90

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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.