Home / 29,319.47-40,460.70-15,890.58

Finding the Fourth Proportional to 29,319.47, 40,460.70 and 15,890.58

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Solution

The fourth proportional to 29,319.47, 40,460.70 and 15,890.58 is: 21,928.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,319.47 : 40,460.70 = 15,890.58 : x
  2. Step 2: Convert to fraction form
    29,319.47/40,460.70 = 15,890.58/x
  3. Step 3: Cross multiply
    29,319.47x = 40,460.70 × 15,890.58
  4. Step 4: Simplify right side
    29,319.47x = 642,943,990.21
  5. Step 5: Solve for x
    x = 642,943,990.21/29,319.47
  6. Step 6: Final answer
    x = 21,928.91

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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.