Home / 28,585.76-39,411.84-18,496.40

Finding the Fourth Proportional to 28,585.76, 39,411.84 and 18,496.40

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Solution

The fourth proportional to 28,585.76, 39,411.84 and 18,496.40 is: 25,501.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,585.76 : 39,411.84 = 18,496.40 : x
  2. Step 2: Convert to fraction form
    28,585.76/39,411.84 = 18,496.40/x
  3. Step 3: Cross multiply
    28,585.76x = 39,411.84 × 18,496.40
  4. Step 4: Simplify right side
    28,585.76x = 728,977,157.38
  5. Step 5: Solve for x
    x = 728,977,157.38/28,585.76
  6. Step 6: Final answer
    x = 25,501.41

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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.