Home / 25,362.40-37,970.70-15,520.90

Finding the Fourth Proportional to 25,362.40, 37,970.70 and 15,520.90

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Solution

The fourth proportional to 25,362.40, 37,970.70 and 15,520.90 is: 23,236.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,362.40 : 37,970.70 = 15,520.90 : x
  2. Step 2: Convert to fraction form
    25,362.40/37,970.70 = 15,520.90/x
  3. Step 3: Cross multiply
    25,362.40x = 37,970.70 × 15,520.90
  4. Step 4: Simplify right side
    25,362.40x = 589,339,437.63
  5. Step 5: Solve for x
    x = 589,339,437.63/25,362.40
  6. Step 6: Final answer
    x = 23,236.74

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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.