Home / 39,084.04-58,638.48-12,782.80

Finding the Fourth Proportional to 39,084.04, 58,638.48 and 12,782.80

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Solution

The fourth proportional to 39,084.04, 58,638.48 and 12,782.80 is: 19,178.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,084.04 : 58,638.48 = 12,782.80 : x
  2. Step 2: Convert to fraction form
    39,084.04/58,638.48 = 12,782.80/x
  3. Step 3: Cross multiply
    39,084.04x = 58,638.48 × 12,782.80
  4. Step 4: Simplify right side
    39,084.04x = 749,563,962.14
  5. Step 5: Solve for x
    x = 749,563,962.14/39,084.04
  6. Step 6: Final answer
    x = 19,178.26

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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.