Home / 21,594.24-29,803.20-13,209.12

Finding the Fourth Proportional to 21,594.24, 29,803.20 and 13,209.12

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Solution

The fourth proportional to 21,594.24, 29,803.20 and 13,209.12 is: 18,230.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,594.24 : 29,803.20 = 13,209.12 : x
  2. Step 2: Convert to fraction form
    21,594.24/29,803.20 = 13,209.12/x
  3. Step 3: Cross multiply
    21,594.24x = 29,803.20 × 13,209.12
  4. Step 4: Simplify right side
    21,594.24x = 393,674,045.18
  5. Step 5: Solve for x
    x = 393,674,045.18/21,594.24
  6. Step 6: Final answer
    x = 18,230.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.