Home / 25,655.76-38,483.63-18,680.16

Finding the Fourth Proportional to 25,655.76, 38,483.63 and 18,680.16

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Solution

The fourth proportional to 25,655.76, 38,483.63 and 18,680.16 is: 28,020.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,655.76 : 38,483.63 = 18,680.16 : x
  2. Step 2: Convert to fraction form
    25,655.76/38,483.63 = 18,680.16/x
  3. Step 3: Cross multiply
    25,655.76x = 38,483.63 × 18,680.16
  4. Step 4: Simplify right side
    25,655.76x = 718,880,272.38
  5. Step 5: Solve for x
    x = 718,880,272.38/25,655.76
  6. Step 6: Final answer
    x = 28,020.23

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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.