Home / 28,572.66-39,423.75-18,369.03

Finding the Fourth Proportional to 28,572.66, 39,423.75 and 18,369.03

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Solution

The fourth proportional to 28,572.66, 39,423.75 and 18,369.03 is: 25,345.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,572.66 : 39,423.75 = 18,369.03 : x
  2. Step 2: Convert to fraction form
    28,572.66/39,423.75 = 18,369.03/x
  3. Step 3: Cross multiply
    28,572.66x = 39,423.75 × 18,369.03
  4. Step 4: Simplify right side
    28,572.66x = 724,176,046.46
  5. Step 5: Solve for x
    x = 724,176,046.46/28,572.66
  6. Step 6: Final answer
    x = 25,345.07

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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.