Home / 30,369.36-45,554.35-10,648.40

Finding the Fourth Proportional to 30,369.36, 45,554.35 and 10,648.40

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Solution

The fourth proportional to 30,369.36, 45,554.35 and 10,648.40 is: 15,972.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,369.36 : 45,554.35 = 10,648.40 : x
  2. Step 2: Convert to fraction form
    30,369.36/45,554.35 = 10,648.40/x
  3. Step 3: Cross multiply
    30,369.36x = 45,554.35 × 10,648.40
  4. Step 4: Simplify right side
    30,369.36x = 485,080,706.11
  5. Step 5: Solve for x
    x = 485,080,706.11/30,369.36
  6. Step 6: Final answer
    x = 15,972.70

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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.