Home / 38,312.57-52,871.60-21,317.53

Finding the Fourth Proportional to 38,312.57, 52,871.60 and 21,317.53

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Solution

The fourth proportional to 38,312.57, 52,871.60 and 21,317.53 is: 29,418.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,312.57 : 52,871.60 = 21,317.53 : x
  2. Step 2: Convert to fraction form
    38,312.57/52,871.60 = 21,317.53/x
  3. Step 3: Cross multiply
    38,312.57x = 52,871.60 × 21,317.53
  4. Step 4: Simplify right side
    38,312.57x = 1,127,091,840.26
  5. Step 5: Solve for x
    x = 1,127,091,840.26/38,312.57
  6. Step 6: Final answer
    x = 29,418.33

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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.