Home / 38,688.22-58,041.08-13,728.30

Finding the Fourth Proportional to 38,688.22, 58,041.08 and 13,728.30

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Solution

The fourth proportional to 38,688.22, 58,041.08 and 13,728.30 is: 20,595.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,688.22 : 58,041.08 = 13,728.30 : x
  2. Step 2: Convert to fraction form
    38,688.22/58,041.08 = 13,728.30/x
  3. Step 3: Cross multiply
    38,688.22x = 58,041.08 × 13,728.30
  4. Step 4: Simplify right side
    38,688.22x = 796,805,123.75
  5. Step 5: Solve for x
    x = 796,805,123.75/38,688.22
  6. Step 6: Final answer
    x = 20,595.55

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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.