Home / 21,520.28-32,283.50-10,417.84

Finding the Fourth Proportional to 21,520.28, 32,283.50 and 10,417.84

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Solution

The fourth proportional to 21,520.28, 32,283.50 and 10,417.84 is: 15,628.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,520.28 : 32,283.50 = 10,417.84 : x
  2. Step 2: Convert to fraction form
    21,520.28/32,283.50 = 10,417.84/x
  3. Step 3: Cross multiply
    21,520.28x = 32,283.50 × 10,417.84
  4. Step 4: Simplify right side
    21,520.28x = 336,324,337.64
  5. Step 5: Solve for x
    x = 336,324,337.64/21,520.28
  6. Step 6: Final answer
    x = 15,628.25

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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.