Home / 20,386.36-30,534.33-15,671.68

Finding the Fourth Proportional to 20,386.36, 30,534.33 and 15,671.68

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Solution

The fourth proportional to 20,386.36, 30,534.33 and 15,671.68 is: 23,472.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,386.36 : 30,534.33 = 15,671.68 : x
  2. Step 2: Convert to fraction form
    20,386.36/30,534.33 = 15,671.68/x
  3. Step 3: Cross multiply
    20,386.36x = 30,534.33 × 15,671.68
  4. Step 4: Simplify right side
    20,386.36x = 478,524,248.77
  5. Step 5: Solve for x
    x = 478,524,248.77/20,386.36
  6. Step 6: Final answer
    x = 23,472.77

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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.