Home / 30,898.02-42,639.18-16,750.86

Finding the Fourth Proportional to 30,898.02, 42,639.18 and 16,750.86

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Solution

The fourth proportional to 30,898.02, 42,639.18 and 16,750.86 is: 23,116.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,898.02 : 42,639.18 = 16,750.86 : x
  2. Step 2: Convert to fraction form
    30,898.02/42,639.18 = 16,750.86/x
  3. Step 3: Cross multiply
    30,898.02x = 42,639.18 × 16,750.86
  4. Step 4: Simplify right side
    30,898.02x = 714,242,934.69
  5. Step 5: Solve for x
    x = 714,242,934.69/30,898.02
  6. Step 6: Final answer
    x = 23,116.14

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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.