Home / 18,081.90-24,953.28-10,420.95

Finding the Fourth Proportional to 18,081.90, 24,953.28 and 10,420.95

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Solution

The fourth proportional to 18,081.90, 24,953.28 and 10,420.95 is: 14,381.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,081.90 : 24,953.28 = 10,420.95 : x
  2. Step 2: Convert to fraction form
    18,081.90/24,953.28 = 10,420.95/x
  3. Step 3: Cross multiply
    18,081.90x = 24,953.28 × 10,420.95
  4. Step 4: Simplify right side
    18,081.90x = 260,036,883.22
  5. Step 5: Solve for x
    x = 260,036,883.22/18,081.90
  6. Step 6: Final answer
    x = 14,381.06

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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.