Home / 31,356.16-43,271.64-17,209.12

Finding the Fourth Proportional to 31,356.16, 43,271.64 and 17,209.12

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Solution

The fourth proportional to 31,356.16, 43,271.64 and 17,209.12 is: 23,748.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,356.16 : 43,271.64 = 17,209.12 : x
  2. Step 2: Convert to fraction form
    31,356.16/43,271.64 = 17,209.12/x
  3. Step 3: Cross multiply
    31,356.16x = 43,271.64 × 17,209.12
  4. Step 4: Simplify right side
    31,356.16x = 744,666,845.36
  5. Step 5: Solve for x
    x = 744,666,845.36/31,356.16
  6. Step 6: Final answer
    x = 23,748.66

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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.