Home / 39,210.36-58,809.47-12,915.33

Finding the Fourth Proportional to 39,210.36, 58,809.47 and 12,915.33

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Solution

The fourth proportional to 39,210.36, 58,809.47 and 12,915.33 is: 19,370.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,210.36 : 58,809.47 = 12,915.33 : x
  2. Step 2: Convert to fraction form
    39,210.36/58,809.47 = 12,915.33/x
  3. Step 3: Cross multiply
    39,210.36x = 58,809.47 × 12,915.33
  4. Step 4: Simplify right side
    39,210.36x = 759,543,647.60
  5. Step 5: Solve for x
    x = 759,543,647.60/39,210.36
  6. Step 6: Final answer
    x = 19,370.99

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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.