Home / 42,386.60-63,580.40-12,804.68

Finding the Fourth Proportional to 42,386.60, 63,580.40 and 12,804.68

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Solution

The fourth proportional to 42,386.60, 63,580.40 and 12,804.68 is: 19,207.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,386.60 : 63,580.40 = 12,804.68 : x
  2. Step 2: Convert to fraction form
    42,386.60/63,580.40 = 12,804.68/x
  3. Step 3: Cross multiply
    42,386.60x = 63,580.40 × 12,804.68
  4. Step 4: Simplify right side
    42,386.60x = 814,126,676.27
  5. Step 5: Solve for x
    x = 814,126,676.27/42,386.60
  6. Step 6: Final answer
    x = 19,207.17

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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.