Home / 39,279.29-54,206.76-21,374.94

Finding the Fourth Proportional to 39,279.29, 54,206.76 and 21,374.94

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Solution

The fourth proportional to 39,279.29, 54,206.76 and 21,374.94 is: 29,498.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,279.29 : 54,206.76 = 21,374.94 : x
  2. Step 2: Convert to fraction form
    39,279.29/54,206.76 = 21,374.94/x
  3. Step 3: Cross multiply
    39,279.29x = 54,206.76 × 21,374.94
  4. Step 4: Simplify right side
    39,279.29x = 1,158,666,242.59
  5. Step 5: Solve for x
    x = 1,158,666,242.59/39,279.29
  6. Step 6: Final answer
    x = 29,498.15

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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.