Home / 30,015.84-45,030.24-16,875.84

Finding the Fourth Proportional to 30,015.84, 45,030.24 and 16,875.84

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Solution

The fourth proportional to 30,015.84, 45,030.24 and 16,875.84 is: 25,317.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,015.84 : 45,030.24 = 16,875.84 : x
  2. Step 2: Convert to fraction form
    30,015.84/45,030.24 = 16,875.84/x
  3. Step 3: Cross multiply
    30,015.84x = 45,030.24 × 16,875.84
  4. Step 4: Simplify right side
    30,015.84x = 759,923,125.40
  5. Step 5: Solve for x
    x = 759,923,125.40/30,015.84
  6. Step 6: Final answer
    x = 25,317.40

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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.