Home / 15,955.42-22,019.20-13,298.38

Finding the Fourth Proportional to 15,955.42, 22,019.20 and 13,298.38

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Solution

The fourth proportional to 15,955.42, 22,019.20 and 13,298.38 is: 18,352.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,955.42 : 22,019.20 = 13,298.38 : x
  2. Step 2: Convert to fraction form
    15,955.42/22,019.20 = 13,298.38/x
  3. Step 3: Cross multiply
    15,955.42x = 22,019.20 × 13,298.38
  4. Step 4: Simplify right side
    15,955.42x = 292,819,688.90
  5. Step 5: Solve for x
    x = 292,819,688.90/15,955.42
  6. Step 6: Final answer
    x = 18,352.36

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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.