Home / 21,658.02-29,901.84-17,688.60

Finding the Fourth Proportional to 21,658.02, 29,901.84 and 17,688.60

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Solution

The fourth proportional to 21,658.02, 29,901.84 and 17,688.60 is: 24,421.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,658.02 : 29,901.84 = 17,688.60 : x
  2. Step 2: Convert to fraction form
    21,658.02/29,901.84 = 17,688.60/x
  3. Step 3: Cross multiply
    21,658.02x = 29,901.84 × 17,688.60
  4. Step 4: Simplify right side
    21,658.02x = 528,921,687.02
  5. Step 5: Solve for x
    x = 528,921,687.02/21,658.02
  6. Step 6: Final answer
    x = 24,421.52

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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.