Home / 40,638.90-56,079.43-22,730.45

Finding the Fourth Proportional to 40,638.90, 56,079.43 and 22,730.45

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Solution

The fourth proportional to 40,638.90, 56,079.43 and 22,730.45 is: 31,366.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,638.90 : 56,079.43 = 22,730.45 : x
  2. Step 2: Convert to fraction form
    40,638.90/56,079.43 = 22,730.45/x
  3. Step 3: Cross multiply
    40,638.90x = 56,079.43 × 22,730.45
  4. Step 4: Simplify right side
    40,638.90x = 1,274,710,285.59
  5. Step 5: Solve for x
    x = 1,274,710,285.59/40,638.90
  6. Step 6: Final answer
    x = 31,366.75

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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.