Home / 31,490.16-43,459.02-17,345.64

Finding the Fourth Proportional to 31,490.16, 43,459.02 and 17,345.64

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Solution

The fourth proportional to 31,490.16, 43,459.02 and 17,345.64 is: 23,938.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,490.16 : 43,459.02 = 17,345.64 : x
  2. Step 2: Convert to fraction form
    31,490.16/43,459.02 = 17,345.64/x
  3. Step 3: Cross multiply
    31,490.16x = 43,459.02 × 17,345.64
  4. Step 4: Simplify right side
    31,490.16x = 753,824,515.67
  5. Step 5: Solve for x
    x = 753,824,515.67/31,490.16
  6. Step 6: Final answer
    x = 23,938.41

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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.