Home / 21,655.02-29,897.70-17,685.60

Finding the Fourth Proportional to 21,655.02, 29,897.70 and 17,685.60

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Solution

The fourth proportional to 21,655.02, 29,897.70 and 17,685.60 is: 24,417.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,655.02 : 29,897.70 = 17,685.60 : x
  2. Step 2: Convert to fraction form
    21,655.02/29,897.70 = 17,685.60/x
  3. Step 3: Cross multiply
    21,655.02x = 29,897.70 × 17,685.60
  4. Step 4: Simplify right side
    21,655.02x = 528,758,763.12
  5. Step 5: Solve for x
    x = 528,758,763.12/21,655.02
  6. Step 6: Final answer
    x = 24,417.38

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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.