Home / 74,598.28-111,896.32-18,438.40

Finding the Fourth Proportional to 74,598.28, 111,896.32 and 18,438.40

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Solution

The fourth proportional to 74,598.28, 111,896.32 and 18,438.40 is: 27,657.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,598.28 : 111,896.32 = 18,438.40 : x
  2. Step 2: Convert to fraction form
    74,598.28/111,896.32 = 18,438.40/x
  3. Step 3: Cross multiply
    74,598.28x = 111,896.32 × 18,438.40
  4. Step 4: Simplify right side
    74,598.28x = 2,063,188,547.21
  5. Step 5: Solve for x
    x = 2,063,188,547.21/74,598.28
  6. Step 6: Final answer
    x = 27,657.32

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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.