Home / 38,437.50-53,044.56-21,670.50

Finding the Fourth Proportional to 38,437.50, 53,044.56 and 21,670.50

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Solution

The fourth proportional to 38,437.50, 53,044.56 and 21,670.50 is: 29,905.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,437.50 : 53,044.56 = 21,670.50 : x
  2. Step 2: Convert to fraction form
    38,437.50/53,044.56 = 21,670.50/x
  3. Step 3: Cross multiply
    38,437.50x = 53,044.56 × 21,670.50
  4. Step 4: Simplify right side
    38,437.50x = 1,149,502,137.48
  5. Step 5: Solve for x
    x = 1,149,502,137.48/38,437.50
  6. Step 6: Final answer
    x = 29,905.75

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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.