Home / 31,070.31-42,877.08-16,923.21

Finding the Fourth Proportional to 31,070.31, 42,877.08 and 16,923.21

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Solution

The fourth proportional to 31,070.31, 42,877.08 and 16,923.21 is: 23,354.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,070.31 : 42,877.08 = 16,923.21 : x
  2. Step 2: Convert to fraction form
    31,070.31/42,877.08 = 16,923.21/x
  3. Step 3: Cross multiply
    31,070.31x = 42,877.08 × 16,923.21
  4. Step 4: Simplify right side
    31,070.31x = 725,617,829.03
  5. Step 5: Solve for x
    x = 725,617,829.03/31,070.31
  6. Step 6: Final answer
    x = 23,354.06

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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.