Home / 38,477.40-57,708.81-13,511.58

Finding the Fourth Proportional to 38,477.40, 57,708.81 and 13,511.58

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Solution

The fourth proportional to 38,477.40, 57,708.81 and 13,511.58 is: 20,264.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,477.40 : 57,708.81 = 13,511.58 : x
  2. Step 2: Convert to fraction form
    38,477.40/57,708.81 = 13,511.58/x
  3. Step 3: Cross multiply
    38,477.40x = 57,708.81 × 13,511.58
  4. Step 4: Simplify right side
    38,477.40x = 779,737,203.02
  5. Step 5: Solve for x
    x = 779,737,203.02/38,477.40
  6. Step 6: Final answer
    x = 20,264.81

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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.