Home / 39,316.80-58,975.20-15,931.20

Finding the Fourth Proportional to 39,316.80, 58,975.20 and 15,931.20

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Solution

The fourth proportional to 39,316.80, 58,975.20 and 15,931.20 is: 23,896.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,316.80 : 58,975.20 = 15,931.20 : x
  2. Step 2: Convert to fraction form
    39,316.80/58,975.20 = 15,931.20/x
  3. Step 3: Cross multiply
    39,316.80x = 58,975.20 × 15,931.20
  4. Step 4: Simplify right side
    39,316.80x = 939,545,706.24
  5. Step 5: Solve for x
    x = 939,545,706.24/39,316.80
  6. Step 6: Final answer
    x = 23,896.80

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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.