Home / 21,327.48-31,948.20-10,782.84

Finding the Fourth Proportional to 21,327.48, 31,948.20 and 10,782.84

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Solution

The fourth proportional to 21,327.48, 31,948.20 and 10,782.84 is: 16,152.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,327.48 : 31,948.20 = 10,782.84 : x
  2. Step 2: Convert to fraction form
    21,327.48/31,948.20 = 10,782.84/x
  3. Step 3: Cross multiply
    21,327.48x = 31,948.20 × 10,782.84
  4. Step 4: Simplify right side
    21,327.48x = 344,492,328.89
  5. Step 5: Solve for x
    x = 344,492,328.89/21,327.48
  6. Step 6: Final answer
    x = 16,152.51

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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.