Home / 39,783.58-59,663.18-13,124.66

Finding the Fourth Proportional to 39,783.58, 59,663.18 and 13,124.66

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Solution

The fourth proportional to 39,783.58, 59,663.18 and 13,124.66 is: 19,682.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,783.58 : 59,663.18 = 13,124.66 : x
  2. Step 2: Convert to fraction form
    39,783.58/59,663.18 = 13,124.66/x
  3. Step 3: Cross multiply
    39,783.58x = 59,663.18 × 13,124.66
  4. Step 4: Simplify right side
    39,783.58x = 783,058,686.51
  5. Step 5: Solve for x
    x = 783,058,686.51/39,783.58
  6. Step 6: Final answer
    x = 19,682.96

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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.