Home / 38,653.02-53,329.08-21,654.98

Finding the Fourth Proportional to 38,653.02, 53,329.08 and 21,654.98

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Solution

The fourth proportional to 38,653.02, 53,329.08 and 21,654.98 is: 29,877.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,653.02 : 53,329.08 = 21,654.98 : x
  2. Step 2: Convert to fraction form
    38,653.02/53,329.08 = 21,654.98/x
  3. Step 3: Cross multiply
    38,653.02x = 53,329.08 × 21,654.98
  4. Step 4: Simplify right side
    38,653.02x = 1,154,840,160.82
  5. Step 5: Solve for x
    x = 1,154,840,160.82/38,653.02
  6. Step 6: Final answer
    x = 29,877.10

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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.