Home / 28,206.65-38,925.49-15,459.56

Finding the Fourth Proportional to 28,206.65, 38,925.49 and 15,459.56

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Solution

The fourth proportional to 28,206.65, 38,925.49 and 15,459.56 is: 21,334.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,206.65 : 38,925.49 = 15,459.56 : x
  2. Step 2: Convert to fraction form
    28,206.65/38,925.49 = 15,459.56/x
  3. Step 3: Cross multiply
    28,206.65x = 38,925.49 × 15,459.56
  4. Step 4: Simplify right side
    28,206.65x = 601,771,006.85
  5. Step 5: Solve for x
    x = 601,771,006.85/28,206.65
  6. Step 6: Final answer
    x = 21,334.36

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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.