Home / 30,130.71-45,208.37-10,423.11

Finding the Fourth Proportional to 30,130.71, 45,208.37 and 10,423.11

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Solution

The fourth proportional to 30,130.71, 45,208.37 and 10,423.11 is: 15,638.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,130.71 : 45,208.37 = 10,423.11 : x
  2. Step 2: Convert to fraction form
    30,130.71/45,208.37 = 10,423.11/x
  3. Step 3: Cross multiply
    30,130.71x = 45,208.37 × 10,423.11
  4. Step 4: Simplify right side
    30,130.71x = 471,211,554.29
  5. Step 5: Solve for x
    x = 471,211,554.29/30,130.71
  6. Step 6: Final answer
    x = 15,638.91

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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.