Home / 21,390.18-32,204.18-18,532.50

Finding the Fourth Proportional to 21,390.18, 32,204.18 and 18,532.50

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Solution

The fourth proportional to 21,390.18, 32,204.18 and 18,532.50 is: 27,901.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,390.18 : 32,204.18 = 18,532.50 : x
  2. Step 2: Convert to fraction form
    21,390.18/32,204.18 = 18,532.50/x
  3. Step 3: Cross multiply
    21,390.18x = 32,204.18 × 18,532.50
  4. Step 4: Simplify right side
    21,390.18x = 596,823,873.19
  5. Step 5: Solve for x
    x = 596,823,873.19/21,390.18
  6. Step 6: Final answer
    x = 27,901.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.