Home / 38,071.68-52,536-21,302.40

Finding the Fourth Proportional to 38,071.68, 52,536 and 21,302.40

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Solution

The fourth proportional to 38,071.68, 52,536 and 21,302.40 is: 29,395.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,071.68 : 52,536 = 21,302.40 : x
  2. Step 2: Convert to fraction form
    38,071.68/52,536 = 21,302.40/x
  3. Step 3: Cross multiply
    38,071.68x = 52,536 × 21,302.40
  4. Step 4: Simplify right side
    38,071.68x = 1,119,142,886.40
  5. Step 5: Solve for x
    x = 1,119,142,886.40/38,071.68
  6. Step 6: Final answer
    x = 29,395.68

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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.