Home / 21,259.35-31,873.23-14,666.76

Finding the Fourth Proportional to 21,259.35, 31,873.23 and 14,666.76

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Solution

The fourth proportional to 21,259.35, 31,873.23 and 14,666.76 is: 21,989.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,259.35 : 31,873.23 = 14,666.76 : x
  2. Step 2: Convert to fraction form
    21,259.35/31,873.23 = 14,666.76/x
  3. Step 3: Cross multiply
    21,259.35x = 31,873.23 × 14,666.76
  4. Step 4: Simplify right side
    21,259.35x = 467,477,014.83
  5. Step 5: Solve for x
    x = 467,477,014.83/21,259.35
  6. Step 6: Final answer
    x = 21,989.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.