Home / 20,240.34-30,159.30-18,032.10

Finding the Fourth Proportional to 20,240.34, 30,159.30 and 18,032.10

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Solution

The fourth proportional to 20,240.34, 30,159.30 and 18,032.10 is: 26,868.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,240.34 : 30,159.30 = 18,032.10 : x
  2. Step 2: Convert to fraction form
    20,240.34/30,159.30 = 18,032.10/x
  3. Step 3: Cross multiply
    20,240.34x = 30,159.30 × 18,032.10
  4. Step 4: Simplify right side
    20,240.34x = 543,835,513.53
  5. Step 5: Solve for x
    x = 543,835,513.53/20,240.34
  6. Step 6: Final answer
    x = 26,868.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.