Home / 21,656.02-29,899.08-17,686.60

Finding the Fourth Proportional to 21,656.02, 29,899.08 and 17,686.60

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Solution

The fourth proportional to 21,656.02, 29,899.08 and 17,686.60 is: 24,418.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,656.02 : 29,899.08 = 17,686.60 : x
  2. Step 2: Convert to fraction form
    21,656.02/29,899.08 = 17,686.60/x
  3. Step 3: Cross multiply
    21,656.02x = 29,899.08 × 17,686.60
  4. Step 4: Simplify right side
    21,656.02x = 528,813,068.33
  5. Step 5: Solve for x
    x = 528,813,068.33/21,656.02
  6. Step 6: Final answer
    x = 24,418.76

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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.