Home / 42,946.20-64,420.92-11,783.88

Finding the Fourth Proportional to 42,946.20, 64,420.92 and 11,783.88

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Solution

The fourth proportional to 42,946.20, 64,420.92 and 11,783.88 is: 17,676.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,946.20 : 64,420.92 = 11,783.88 : x
  2. Step 2: Convert to fraction form
    42,946.20/64,420.92 = 11,783.88/x
  3. Step 3: Cross multiply
    42,946.20x = 64,420.92 × 11,783.88
  4. Step 4: Simplify right side
    42,946.20x = 759,128,390.77
  5. Step 5: Solve for x
    x = 759,128,390.77/42,946.20
  6. Step 6: Final answer
    x = 17,676.26

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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.