Home / 38,947.34-58,423.81-13,987.59

Finding the Fourth Proportional to 38,947.34, 58,423.81 and 13,987.59

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Solution

The fourth proportional to 38,947.34, 58,423.81 and 13,987.59 is: 20,982.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,947.34 : 58,423.81 = 13,987.59 : x
  2. Step 2: Convert to fraction form
    38,947.34/58,423.81 = 13,987.59/x
  3. Step 3: Cross multiply
    38,947.34x = 58,423.81 × 13,987.59
  4. Step 4: Simplify right side
    38,947.34x = 817,208,300.52
  5. Step 5: Solve for x
    x = 817,208,300.52/38,947.34
  6. Step 6: Final answer
    x = 20,982.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.