Home / 21,877.02-32,644.80-19,520.82

Finding the Fourth Proportional to 21,877.02, 32,644.80 and 19,520.82

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Solution

The fourth proportional to 21,877.02, 32,644.80 and 19,520.82 is: 29,128.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,877.02 : 32,644.80 = 19,520.82 : x
  2. Step 2: Convert to fraction form
    21,877.02/32,644.80 = 19,520.82/x
  3. Step 3: Cross multiply
    21,877.02x = 32,644.80 × 19,520.82
  4. Step 4: Simplify right side
    21,877.02x = 637,253,264.74
  5. Step 5: Solve for x
    x = 637,253,264.74/21,877.02
  6. Step 6: Final answer
    x = 29,128.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.