Home / 21,654.02-32,417.67-19,578.80

Finding the Fourth Proportional to 21,654.02, 32,417.67 and 19,578.80

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Solution

The fourth proportional to 21,654.02, 32,417.67 and 19,578.80 is: 29,310.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,654.02 : 32,417.67 = 19,578.80 : x
  2. Step 2: Convert to fraction form
    21,654.02/32,417.67 = 19,578.80/x
  3. Step 3: Cross multiply
    21,654.02x = 32,417.67 × 19,578.80
  4. Step 4: Simplify right side
    21,654.02x = 634,699,077.40
  5. Step 5: Solve for x
    x = 634,699,077.40/21,654.02
  6. Step 6: Final answer
    x = 29,310.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.