Home / 21,798.80-32,633.40-13,029.20

Finding the Fourth Proportional to 21,798.80, 32,633.40 and 13,029.20

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Solution

The fourth proportional to 21,798.80, 32,633.40 and 13,029.20 is: 19,505.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,798.80 : 32,633.40 = 13,029.20 : x
  2. Step 2: Convert to fraction form
    21,798.80/32,633.40 = 13,029.20/x
  3. Step 3: Cross multiply
    21,798.80x = 32,633.40 × 13,029.20
  4. Step 4: Simplify right side
    21,798.80x = 425,187,095.28
  5. Step 5: Solve for x
    x = 425,187,095.28/21,798.80
  6. Step 6: Final answer
    x = 19,505.07

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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.