Home / 28,219.40-42,426.70-26,392.20

Finding the Fourth Proportional to 28,219.40, 42,426.70 and 26,392.20

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Solution

The fourth proportional to 28,219.40, 42,426.70 and 26,392.20 is: 39,679.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,219.40 : 42,426.70 = 26,392.20 : x
  2. Step 2: Convert to fraction form
    28,219.40/42,426.70 = 26,392.20/x
  3. Step 3: Cross multiply
    28,219.40x = 42,426.70 × 26,392.20
  4. Step 4: Simplify right side
    28,219.40x = 1,119,733,951.74
  5. Step 5: Solve for x
    x = 1,119,733,951.74/28,219.40
  6. Step 6: Final answer
    x = 39,679.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.