Home / 30,598.50-45,897.18-8,411.78

Finding the Fourth Proportional to 30,598.50, 45,897.18 and 8,411.78

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Solution

The fourth proportional to 30,598.50, 45,897.18 and 8,411.78 is: 12,617.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,598.50 : 45,897.18 = 8,411.78 : x
  2. Step 2: Convert to fraction form
    30,598.50/45,897.18 = 8,411.78/x
  3. Step 3: Cross multiply
    30,598.50x = 45,897.18 × 8,411.78
  4. Step 4: Simplify right side
    30,598.50x = 386,076,980.78
  5. Step 5: Solve for x
    x = 386,076,980.78/30,598.50
  6. Step 6: Final answer
    x = 12,617.51

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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.