Home / 28,555.86-42,804.36-11,925.57

Finding the Fourth Proportional to 28,555.86, 42,804.36 and 11,925.57

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Solution

The fourth proportional to 28,555.86, 42,804.36 and 11,925.57 is: 17,876.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,555.86 : 42,804.36 = 11,925.57 : x
  2. Step 2: Convert to fraction form
    28,555.86/42,804.36 = 11,925.57/x
  3. Step 3: Cross multiply
    28,555.86x = 42,804.36 × 11,925.57
  4. Step 4: Simplify right side
    28,555.86x = 510,466,391.49
  5. Step 5: Solve for x
    x = 510,466,391.49/28,555.86
  6. Step 6: Final answer
    x = 17,876.06

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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.