Home / 39,555.02-54,586.05-21,651.18

Finding the Fourth Proportional to 39,555.02, 54,586.05 and 21,651.18

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Solution

The fourth proportional to 39,555.02, 54,586.05 and 21,651.18 is: 29,878.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,555.02 : 54,586.05 = 21,651.18 : x
  2. Step 2: Convert to fraction form
    39,555.02/54,586.05 = 21,651.18/x
  3. Step 3: Cross multiply
    39,555.02x = 54,586.05 × 21,651.18
  4. Step 4: Simplify right side
    39,555.02x = 1,181,852,394.04
  5. Step 5: Solve for x
    x = 1,181,852,394.04/39,555.02
  6. Step 6: Final answer
    x = 29,878.70

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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.