Home / 31,031.58-46,510.38-21,620.64

Finding the Fourth Proportional to 31,031.58, 46,510.38 and 21,620.64

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Solution

The fourth proportional to 31,031.58, 46,510.38 and 21,620.64 is: 32,405.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,031.58 : 46,510.38 = 21,620.64 : x
  2. Step 2: Convert to fraction form
    31,031.58/46,510.38 = 21,620.64/x
  3. Step 3: Cross multiply
    31,031.58x = 46,510.38 × 21,620.64
  4. Step 4: Simplify right side
    31,031.58x = 1,005,584,182.24
  5. Step 5: Solve for x
    x = 1,005,584,182.24/31,031.58
  6. Step 6: Final answer
    x = 32,405.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.