Home / 21,875.83-30,160.90-16,777.29

Finding the Fourth Proportional to 21,875.83, 30,160.90 and 16,777.29

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Solution

The fourth proportional to 21,875.83, 30,160.90 and 16,777.29 is: 23,131.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,875.83 : 30,160.90 = 16,777.29 : x
  2. Step 2: Convert to fraction form
    21,875.83/30,160.90 = 16,777.29/x
  3. Step 3: Cross multiply
    21,875.83x = 30,160.90 × 16,777.29
  4. Step 4: Simplify right side
    21,875.83x = 506,017,931.27
  5. Step 5: Solve for x
    x = 506,017,931.27/21,875.83
  6. Step 6: Final answer
    x = 23,131.37

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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.