Home / 21,450.02-29,600.98-13,066.52

Finding the Fourth Proportional to 21,450.02, 29,600.98 and 13,066.52

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Solution

The fourth proportional to 21,450.02, 29,600.98 and 13,066.52 is: 18,031.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,450.02 : 29,600.98 = 13,066.52 : x
  2. Step 2: Convert to fraction form
    21,450.02/29,600.98 = 13,066.52/x
  3. Step 3: Cross multiply
    21,450.02x = 29,600.98 × 13,066.52
  4. Step 4: Simplify right side
    21,450.02x = 386,781,797.19
  5. Step 5: Solve for x
    x = 386,781,797.19/21,450.02
  6. Step 6: Final answer
    x = 18,031.77

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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.