Home / 21,041.61-29,038.03-11,610.78

Finding the Fourth Proportional to 21,041.61, 29,038.03 and 11,610.78

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Solution

The fourth proportional to 21,041.61, 29,038.03 and 11,610.78 is: 16,023.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,041.61 : 29,038.03 = 11,610.78 : x
  2. Step 2: Convert to fraction form
    21,041.61/29,038.03 = 11,610.78/x
  3. Step 3: Cross multiply
    21,041.61x = 29,038.03 × 11,610.78
  4. Step 4: Simplify right side
    21,041.61x = 337,154,177.96
  5. Step 5: Solve for x
    x = 337,154,177.96/21,041.61
  6. Step 6: Final answer
    x = 16,023.21

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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.