Home / 38,309.95-52,868.06-21,316.15

Finding the Fourth Proportional to 38,309.95, 52,868.06 and 21,316.15

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Solution

The fourth proportional to 38,309.95, 52,868.06 and 21,316.15 is: 29,416.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,309.95 : 52,868.06 = 21,316.15 : x
  2. Step 2: Convert to fraction form
    38,309.95/52,868.06 = 21,316.15/x
  3. Step 3: Cross multiply
    38,309.95x = 52,868.06 × 21,316.15
  4. Step 4: Simplify right side
    38,309.95x = 1,126,943,497.17
  5. Step 5: Solve for x
    x = 1,126,943,497.17/38,309.95
  6. Step 6: Final answer
    x = 29,416.47

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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.