Home / 39,897.51-55,058.29-21,992.53

Finding the Fourth Proportional to 39,897.51, 55,058.29 and 21,992.53

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Solution

The fourth proportional to 39,897.51, 55,058.29 and 21,992.53 is: 30,349.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,897.51 : 55,058.29 = 21,992.53 : x
  2. Step 2: Convert to fraction form
    39,897.51/55,058.29 = 21,992.53/x
  3. Step 3: Cross multiply
    39,897.51x = 55,058.29 × 21,992.53
  4. Step 4: Simplify right side
    39,897.51x = 1,210,871,094.57
  5. Step 5: Solve for x
    x = 1,210,871,094.57/39,897.51
  6. Step 6: Final answer
    x = 30,349.54

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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.