Home / 39,674.12-59,404.53-20,915.15

Finding the Fourth Proportional to 39,674.12, 59,404.53 and 20,915.15

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Solution

The fourth proportional to 39,674.12, 59,404.53 and 20,915.15 is: 31,316.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,674.12 : 59,404.53 = 20,915.15 : x
  2. Step 2: Convert to fraction form
    39,674.12/59,404.53 = 20,915.15/x
  3. Step 3: Cross multiply
    39,674.12x = 59,404.53 × 20,915.15
  4. Step 4: Simplify right side
    39,674.12x = 1,242,454,655.63
  5. Step 5: Solve for x
    x = 1,242,454,655.63/39,674.12
  6. Step 6: Final answer
    x = 31,316.50

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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.