Home / 22,482.39-31,029.45-21,485.91

Finding the Fourth Proportional to 22,482.39, 31,029.45 and 21,485.91

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Solution

The fourth proportional to 22,482.39, 31,029.45 and 21,485.91 is: 29,654.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,482.39 : 31,029.45 = 21,485.91 : x
  2. Step 2: Convert to fraction form
    22,482.39/31,029.45 = 21,485.91/x
  3. Step 3: Cross multiply
    22,482.39x = 31,029.45 × 21,485.91
  4. Step 4: Simplify right side
    22,482.39x = 666,695,970.05
  5. Step 5: Solve for x
    x = 666,695,970.05/22,482.39
  6. Step 6: Final answer
    x = 29,654.14

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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.