Home / 28,277.80-42,416.70-26,204.20

Finding the Fourth Proportional to 28,277.80, 42,416.70 and 26,204.20

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Solution

The fourth proportional to 28,277.80, 42,416.70 and 26,204.20 is: 39,306.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,277.80 : 42,416.70 = 26,204.20 : x
  2. Step 2: Convert to fraction form
    28,277.80/42,416.70 = 26,204.20/x
  3. Step 3: Cross multiply
    28,277.80x = 42,416.70 × 26,204.20
  4. Step 4: Simplify right side
    28,277.80x = 1,111,495,690.14
  5. Step 5: Solve for x
    x = 1,111,495,690.14/28,277.80
  6. Step 6: Final answer
    x = 39,306.30

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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.