Home / 28,123.60-42,169.20-10,595.20

Finding the Fourth Proportional to 28,123.60, 42,169.20 and 10,595.20

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Solution

The fourth proportional to 28,123.60, 42,169.20 and 10,595.20 is: 15,886.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,123.60 : 42,169.20 = 10,595.20 : x
  2. Step 2: Convert to fraction form
    28,123.60/42,169.20 = 10,595.20/x
  3. Step 3: Cross multiply
    28,123.60x = 42,169.20 × 10,595.20
  4. Step 4: Simplify right side
    28,123.60x = 446,791,107.84
  5. Step 5: Solve for x
    x = 446,791,107.84/28,123.60
  6. Step 6: Final answer
    x = 15,886.70

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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.