Home / 28,364.32-42,526.78-12,560.74

Finding the Fourth Proportional to 28,364.32, 42,526.78 and 12,560.74

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Solution

The fourth proportional to 28,364.32, 42,526.78 and 12,560.74 is: 18,832.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,364.32 : 42,526.78 = 12,560.74 : x
  2. Step 2: Convert to fraction form
    28,364.32/42,526.78 = 12,560.74/x
  3. Step 3: Cross multiply
    28,364.32x = 42,526.78 × 12,560.74
  4. Step 4: Simplify right side
    28,364.32x = 534,167,826.62
  5. Step 5: Solve for x
    x = 534,167,826.62/28,364.32
  6. Step 6: Final answer
    x = 18,832.39

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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.