Home / 28,433.40-42,595.70-15,281.40

Finding the Fourth Proportional to 28,433.40, 42,595.70 and 15,281.40

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Solution

The fourth proportional to 28,433.40, 42,595.70 and 15,281.40 is: 22,892.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,433.40 : 42,595.70 = 15,281.40 : x
  2. Step 2: Convert to fraction form
    28,433.40/42,595.70 = 15,281.40/x
  3. Step 3: Cross multiply
    28,433.40x = 42,595.70 × 15,281.40
  4. Step 4: Simplify right side
    28,433.40x = 650,921,929.98
  5. Step 5: Solve for x
    x = 650,921,929.98/28,433.40
  6. Step 6: Final answer
    x = 22,892.86

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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.