Home / 38,488.12-57,762.44-19,767.40

Finding the Fourth Proportional to 38,488.12, 57,762.44 and 19,767.40

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Solution

The fourth proportional to 38,488.12, 57,762.44 and 19,767.40 is: 29,666.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,488.12 : 57,762.44 = 19,767.40 : x
  2. Step 2: Convert to fraction form
    38,488.12/57,762.44 = 19,767.40/x
  3. Step 3: Cross multiply
    38,488.12x = 57,762.44 × 19,767.40
  4. Step 4: Simplify right side
    38,488.12x = 1,141,813,256.46
  5. Step 5: Solve for x
    x = 1,141,813,256.46/38,488.12
  6. Step 6: Final answer
    x = 29,666.64

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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.