Home / 38,501.96-53,132.13-21,506.45

Finding the Fourth Proportional to 38,501.96, 53,132.13 and 21,506.45

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Solution

The fourth proportional to 38,501.96, 53,132.13 and 21,506.45 is: 29,678.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,501.96 : 53,132.13 = 21,506.45 : x
  2. Step 2: Convert to fraction form
    38,501.96/53,132.13 = 21,506.45/x
  3. Step 3: Cross multiply
    38,501.96x = 53,132.13 × 21,506.45
  4. Step 4: Simplify right side
    38,501.96x = 1,142,683,710.72
  5. Step 5: Solve for x
    x = 1,142,683,710.72/38,501.96
  6. Step 6: Final answer
    x = 29,678.59

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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.