Home / 18,055.09-24,947.76-15,646.56

Finding the Fourth Proportional to 18,055.09, 24,947.76 and 15,646.56

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Solution

The fourth proportional to 18,055.09, 24,947.76 and 15,646.56 is: 21,619.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,055.09 : 24,947.76 = 15,646.56 : x
  2. Step 2: Convert to fraction form
    18,055.09/24,947.76 = 15,646.56/x
  3. Step 3: Cross multiply
    18,055.09x = 24,947.76 × 15,646.56
  4. Step 4: Simplify right side
    18,055.09x = 390,346,623.71
  5. Step 5: Solve for x
    x = 390,346,623.71/18,055.09
  6. Step 6: Final answer
    x = 21,619.76

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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.