Home / 31,030.64-42,820.99-16,883.49

Finding the Fourth Proportional to 31,030.64, 42,820.99 and 16,883.49

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Solution

The fourth proportional to 31,030.64, 42,820.99 and 16,883.49 is: 23,298.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,030.64 : 42,820.99 = 16,883.49 : x
  2. Step 2: Convert to fraction form
    31,030.64/42,820.99 = 16,883.49/x
  3. Step 3: Cross multiply
    31,030.64x = 42,820.99 × 16,883.49
  4. Step 4: Simplify right side
    31,030.64x = 722,967,714.25
  5. Step 5: Solve for x
    x = 722,967,714.25/31,030.64
  6. Step 6: Final answer
    x = 23,298.51

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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.