Home / 21,518.93-32,278.10-10,426.59

Finding the Fourth Proportional to 21,518.93, 32,278.10 and 10,426.59

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Solution

The fourth proportional to 21,518.93, 32,278.10 and 10,426.59 is: 15,639.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,518.93 : 32,278.10 = 10,426.59 : x
  2. Step 2: Convert to fraction form
    21,518.93/32,278.10 = 10,426.59/x
  3. Step 3: Cross multiply
    21,518.93x = 32,278.10 × 10,426.59
  4. Step 4: Simplify right side
    21,518.93x = 336,550,462.55
  5. Step 5: Solve for x
    x = 336,550,462.55/21,518.93
  6. Step 6: Final answer
    x = 15,639.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.