Home / 28,615.20-42,922.80-26,541.60

Finding the Fourth Proportional to 28,615.20, 42,922.80 and 26,541.60

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Solution

The fourth proportional to 28,615.20, 42,922.80 and 26,541.60 is: 39,812.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,615.20 : 42,922.80 = 26,541.60 : x
  2. Step 2: Convert to fraction form
    28,615.20/42,922.80 = 26,541.60/x
  3. Step 3: Cross multiply
    28,615.20x = 42,922.80 × 26,541.60
  4. Step 4: Simplify right side
    28,615.20x = 1,139,239,788.48
  5. Step 5: Solve for x
    x = 1,139,239,788.48/28,615.20
  6. Step 6: Final answer
    x = 39,812.40

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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.