Home / 39,055.93-53,897.10-21,150.88

Finding the Fourth Proportional to 39,055.93, 53,897.10 and 21,150.88

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Solution

The fourth proportional to 39,055.93, 53,897.10 and 21,150.88 is: 29,188.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,055.93 : 53,897.10 = 21,150.88 : x
  2. Step 2: Convert to fraction form
    39,055.93/53,897.10 = 21,150.88/x
  3. Step 3: Cross multiply
    39,055.93x = 53,897.10 × 21,150.88
  4. Step 4: Simplify right side
    39,055.93x = 1,139,971,094.45
  5. Step 5: Solve for x
    x = 1,139,971,094.45/39,055.93
  6. Step 6: Final answer
    x = 29,188.17

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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.