Home / 31,355.68-43,271.18-17,209.08

Finding the Fourth Proportional to 31,355.68, 43,271.18 and 17,209.08

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Solution

The fourth proportional to 31,355.68, 43,271.18 and 17,209.08 is: 23,748.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,355.68 : 43,271.18 = 17,209.08 : x
  2. Step 2: Convert to fraction form
    31,355.68/43,271.18 = 17,209.08/x
  3. Step 3: Cross multiply
    31,355.68x = 43,271.18 × 17,209.08
  4. Step 4: Simplify right side
    31,355.68x = 744,657,198.31
  5. Step 5: Solve for x
    x = 744,657,198.31/31,355.68
  6. Step 6: Final answer
    x = 23,748.72

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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.