Home / 30,287.21-45,432.63-9,510.71

Finding the Fourth Proportional to 30,287.21, 45,432.63 and 9,510.71

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Solution

The fourth proportional to 30,287.21, 45,432.63 and 9,510.71 is: 14,266.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,287.21 : 45,432.63 = 9,510.71 : x
  2. Step 2: Convert to fraction form
    30,287.21/45,432.63 = 9,510.71/x
  3. Step 3: Cross multiply
    30,287.21x = 45,432.63 × 9,510.71
  4. Step 4: Simplify right side
    30,287.21x = 432,096,341.30
  5. Step 5: Solve for x
    x = 432,096,341.30/30,287.21
  6. Step 6: Final answer
    x = 14,266.63

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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.