Home / 31,260.16-43,152.24-30,417.76

Finding the Fourth Proportional to 31,260.16, 43,152.24 and 30,417.76

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Solution

The fourth proportional to 31,260.16, 43,152.24 and 30,417.76 is: 41,989.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,260.16 : 43,152.24 = 30,417.76 : x
  2. Step 2: Convert to fraction form
    31,260.16/43,152.24 = 30,417.76/x
  3. Step 3: Cross multiply
    31,260.16x = 43,152.24 × 30,417.76
  4. Step 4: Simplify right side
    31,260.16x = 1,312,594,479.78
  5. Step 5: Solve for x
    x = 1,312,594,479.78/31,260.16
  6. Step 6: Final answer
    x = 41,989.37

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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.