Home / 28,290.62-42,430.46-26,885.68

Finding the Fourth Proportional to 28,290.62, 42,430.46 and 26,885.68

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Solution

The fourth proportional to 28,290.62, 42,430.46 and 26,885.68 is: 40,323.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,290.62 : 42,430.46 = 26,885.68 : x
  2. Step 2: Convert to fraction form
    28,290.62/42,430.46 = 26,885.68/x
  3. Step 3: Cross multiply
    28,290.62x = 42,430.46 × 26,885.68
  4. Step 4: Simplify right side
    28,290.62x = 1,140,771,769.81
  5. Step 5: Solve for x
    x = 1,140,771,769.81/28,290.62
  6. Step 6: Final answer
    x = 40,323.32

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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.