Home / 31,528.14-43,510.68-18,099.42

Finding the Fourth Proportional to 31,528.14, 43,510.68 and 18,099.42

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Solution

The fourth proportional to 31,528.14, 43,510.68 and 18,099.42 is: 24,978.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,528.14 : 43,510.68 = 18,099.42 : x
  2. Step 2: Convert to fraction form
    31,528.14/43,510.68 = 18,099.42/x
  3. Step 3: Cross multiply
    31,528.14x = 43,510.68 × 18,099.42
  4. Step 4: Simplify right side
    31,528.14x = 787,518,071.81
  5. Step 5: Solve for x
    x = 787,518,071.81/31,528.14
  6. Step 6: Final answer
    x = 24,978.26

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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.