Home / 39,041.45-53,877.48-21,136.50

Finding the Fourth Proportional to 39,041.45, 53,877.48 and 21,136.50

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Solution

The fourth proportional to 39,041.45, 53,877.48 and 21,136.50 is: 29,168.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,041.45 : 53,877.48 = 21,136.50 : x
  2. Step 2: Convert to fraction form
    39,041.45/53,877.48 = 21,136.50/x
  3. Step 3: Cross multiply
    39,041.45x = 53,877.48 × 21,136.50
  4. Step 4: Simplify right side
    39,041.45x = 1,138,781,356.02
  5. Step 5: Solve for x
    x = 1,138,781,356.02/39,041.45
  6. Step 6: Final answer
    x = 29,168.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.