Home / 22,020.04-30,345.70-21,615.18

Finding the Fourth Proportional to 22,020.04, 30,345.70 and 21,615.18

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Solution

The fourth proportional to 22,020.04, 30,345.70 and 21,615.18 is: 29,787.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,020.04 : 30,345.70 = 21,615.18 : x
  2. Step 2: Convert to fraction form
    22,020.04/30,345.70 = 21,615.18/x
  3. Step 3: Cross multiply
    22,020.04x = 30,345.70 × 21,615.18
  4. Step 4: Simplify right side
    22,020.04x = 655,927,616.00
  5. Step 5: Solve for x
    x = 655,927,616.00/22,020.04
  6. Step 6: Final answer
    x = 29,787.76

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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.