Home / 30,345.20-41,871.28-16,913.52

Finding the Fourth Proportional to 30,345.20, 41,871.28 and 16,913.52

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Solution

The fourth proportional to 30,345.20, 41,871.28 and 16,913.52 is: 23,337.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,345.20 : 41,871.28 = 16,913.52 : x
  2. Step 2: Convert to fraction form
    30,345.20/41,871.28 = 16,913.52/x
  3. Step 3: Cross multiply
    30,345.20x = 41,871.28 × 16,913.52
  4. Step 4: Simplify right side
    30,345.20x = 708,190,731.71
  5. Step 5: Solve for x
    x = 708,190,731.71/30,345.20
  6. Step 6: Final answer
    x = 23,337.82

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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.