Home / 39,130.04-53,999.14-21,225

Finding the Fourth Proportional to 39,130.04, 53,999.14 and 21,225

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Solution

The fourth proportional to 39,130.04, 53,999.14 and 21,225 is: 29,290.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,130.04 : 53,999.14 = 21,225 : x
  2. Step 2: Convert to fraction form
    39,130.04/53,999.14 = 21,225/x
  3. Step 3: Cross multiply
    39,130.04x = 53,999.14 × 21,225
  4. Step 4: Simplify right side
    39,130.04x = 1,146,131,746.50
  5. Step 5: Solve for x
    x = 1,146,131,746.50/39,130.04
  6. Step 6: Final answer
    x = 29,290.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.