Home / 31,506.40-43,479-17,360.08

Finding the Fourth Proportional to 31,506.40, 43,479 and 17,360.08

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Solution

The fourth proportional to 31,506.40, 43,479 and 17,360.08 is: 23,957.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,506.40 : 43,479 = 17,360.08 : x
  2. Step 2: Convert to fraction form
    31,506.40/43,479 = 17,360.08/x
  3. Step 3: Cross multiply
    31,506.40x = 43,479 × 17,360.08
  4. Step 4: Simplify right side
    31,506.40x = 754,798,918.32
  5. Step 5: Solve for x
    x = 754,798,918.32/31,506.40
  6. Step 6: Final answer
    x = 23,957.00

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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.