Home / 39,123.02-53,989.40-22,130.58

Finding the Fourth Proportional to 39,123.02, 53,989.40 and 22,130.58

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Solution

The fourth proportional to 39,123.02, 53,989.40 and 22,130.58 is: 30,539.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,123.02 : 53,989.40 = 22,130.58 : x
  2. Step 2: Convert to fraction form
    39,123.02/53,989.40 = 22,130.58/x
  3. Step 3: Cross multiply
    39,123.02x = 53,989.40 × 22,130.58
  4. Step 4: Simplify right side
    39,123.02x = 1,194,816,735.85
  5. Step 5: Solve for x
    x = 1,194,816,735.85/39,123.02
  6. Step 6: Final answer
    x = 30,539.99

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1.5x scale

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.