Home / 38,308.95-52,865.34-21,312.33

Finding the Fourth Proportional to 38,308.95, 52,865.34 and 21,312.33

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Solution

The fourth proportional to 38,308.95, 52,865.34 and 21,312.33 is: 29,410.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,308.95 : 52,865.34 = 21,312.33 : x
  2. Step 2: Convert to fraction form
    38,308.95/52,865.34 = 21,312.33/x
  3. Step 3: Cross multiply
    38,308.95x = 52,865.34 × 21,312.33
  4. Step 4: Simplify right side
    38,308.95x = 1,126,683,571.64
  5. Step 5: Solve for x
    x = 1,126,683,571.64/38,308.95
  6. Step 6: Final answer
    x = 29,410.45

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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.