Home / 39,897.45-59,842.80-12,195.45

Finding the Fourth Proportional to 39,897.45, 59,842.80 and 12,195.45

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Solution

The fourth proportional to 39,897.45, 59,842.80 and 12,195.45 is: 18,292.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,897.45 : 59,842.80 = 12,195.45 : x
  2. Step 2: Convert to fraction form
    39,897.45/59,842.80 = 12,195.45/x
  3. Step 3: Cross multiply
    39,897.45x = 59,842.80 × 12,195.45
  4. Step 4: Simplify right side
    39,897.45x = 729,809,875.26
  5. Step 5: Solve for x
    x = 729,809,875.26/39,897.45
  6. Step 6: Final answer
    x = 18,292.14

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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.