Home / 21,490.02-29,669.76-17,520.48

Finding the Fourth Proportional to 21,490.02, 29,669.76 and 17,520.48

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Solution

The fourth proportional to 21,490.02, 29,669.76 and 17,520.48 is: 24,189.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,490.02 : 29,669.76 = 17,520.48 : x
  2. Step 2: Convert to fraction form
    21,490.02/29,669.76 = 17,520.48/x
  3. Step 3: Cross multiply
    21,490.02x = 29,669.76 × 17,520.48
  4. Step 4: Simplify right side
    21,490.02x = 519,828,436.68
  5. Step 5: Solve for x
    x = 519,828,436.68/21,490.02
  6. Step 6: Final answer
    x = 24,189.30

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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.