Home / 39,875.69-59,822.80-13,580.66

Finding the Fourth Proportional to 39,875.69, 59,822.80 and 13,580.66

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Solution

The fourth proportional to 39,875.69, 59,822.80 and 13,580.66 is: 20,374.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,875.69 : 59,822.80 = 13,580.66 : x
  2. Step 2: Convert to fraction form
    39,875.69/59,822.80 = 13,580.66/x
  3. Step 3: Cross multiply
    39,875.69x = 59,822.80 × 13,580.66
  4. Step 4: Simplify right side
    39,875.69x = 812,433,222.65
  5. Step 5: Solve for x
    x = 812,433,222.65/39,875.69
  6. Step 6: Final answer
    x = 20,374.15

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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.