Home / 42,386.60-63,579.90-12,801.35

Finding the Fourth Proportional to 42,386.60, 63,579.90 and 12,801.35

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Solution

The fourth proportional to 42,386.60, 63,579.90 and 12,801.35 is: 19,202.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,386.60 : 63,579.90 = 12,801.35 : x
  2. Step 2: Convert to fraction form
    42,386.60/63,579.90 = 12,801.35/x
  3. Step 3: Cross multiply
    42,386.60x = 63,579.90 × 12,801.35
  4. Step 4: Simplify right side
    42,386.60x = 813,908,552.87
  5. Step 5: Solve for x
    x = 813,908,552.87/42,386.60
  6. Step 6: Final answer
    x = 19,202.03

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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.