Home / 42,394.60-63,592.40-12,812.68

Finding the Fourth Proportional to 42,394.60, 63,592.40 and 12,812.68

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Solution

The fourth proportional to 42,394.60, 63,592.40 and 12,812.68 is: 19,219.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,394.60 : 63,592.40 = 12,812.68 : x
  2. Step 2: Convert to fraction form
    42,394.60/63,592.40 = 12,812.68/x
  3. Step 3: Cross multiply
    42,394.60x = 63,592.40 × 12,812.68
  4. Step 4: Simplify right side
    42,394.60x = 814,789,071.63
  5. Step 5: Solve for x
    x = 814,789,071.63/42,394.60
  6. Step 6: Final answer
    x = 19,219.17

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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.