Home / 30,983.40-42,658.02-26,260.20

Finding the Fourth Proportional to 30,983.40, 42,658.02 and 26,260.20

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Solution

The fourth proportional to 30,983.40, 42,658.02 and 26,260.20 is: 36,155.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,983.40 : 42,658.02 = 26,260.20 : x
  2. Step 2: Convert to fraction form
    30,983.40/42,658.02 = 26,260.20/x
  3. Step 3: Cross multiply
    30,983.40x = 42,658.02 × 26,260.20
  4. Step 4: Simplify right side
    30,983.40x = 1,120,208,136.80
  5. Step 5: Solve for x
    x = 1,120,208,136.80/30,983.40
  6. Step 6: Final answer
    x = 36,155.11

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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.