Home / 20,555.04-30,671.16-19,301.16

Finding the Fourth Proportional to 20,555.04, 30,671.16 and 19,301.16

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Solution

The fourth proportional to 20,555.04, 30,671.16 and 19,301.16 is: 28,800.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,555.04 : 30,671.16 = 19,301.16 : x
  2. Step 2: Convert to fraction form
    20,555.04/30,671.16 = 19,301.16/x
  3. Step 3: Cross multiply
    20,555.04x = 30,671.16 × 19,301.16
  4. Step 4: Simplify right side
    20,555.04x = 591,988,966.55
  5. Step 5: Solve for x
    x = 591,988,966.55/20,555.04
  6. Step 6: Final answer
    x = 28,800.19

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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.