Home / 21,004.02-31,650.06-17,387.40

Finding the Fourth Proportional to 21,004.02, 31,650.06 and 17,387.40

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Solution

The fourth proportional to 21,004.02, 31,650.06 and 17,387.40 is: 26,200.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,004.02 : 31,650.06 = 17,387.40 : x
  2. Step 2: Convert to fraction form
    21,004.02/31,650.06 = 17,387.40/x
  3. Step 3: Cross multiply
    21,004.02x = 31,650.06 × 17,387.40
  4. Step 4: Simplify right side
    21,004.02x = 550,312,253.24
  5. Step 5: Solve for x
    x = 550,312,253.24/21,004.02
  6. Step 6: Final answer
    x = 26,200.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.