Home / 39,897.74-55,058.51-21,748.46

Finding the Fourth Proportional to 39,897.74, 55,058.51 and 21,748.46

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Solution

The fourth proportional to 39,897.74, 55,058.51 and 21,748.46 is: 30,012.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,897.74 : 55,058.51 = 21,748.46 : x
  2. Step 2: Convert to fraction form
    39,897.74/55,058.51 = 21,748.46/x
  3. Step 3: Cross multiply
    39,897.74x = 55,058.51 × 21,748.46
  4. Step 4: Simplify right side
    39,897.74x = 1,197,437,418.36
  5. Step 5: Solve for x
    x = 1,197,437,418.36/39,897.74
  6. Step 6: Final answer
    x = 30,012.67

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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.