Home / 30,013.04-45,019.54-10,291.76

Finding the Fourth Proportional to 30,013.04, 45,019.54 and 10,291.76

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Solution

The fourth proportional to 30,013.04, 45,019.54 and 10,291.76 is: 15,437.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,013.04 : 45,019.54 = 10,291.76 : x
  2. Step 2: Convert to fraction form
    30,013.04/45,019.54 = 10,291.76/x
  3. Step 3: Cross multiply
    30,013.04x = 45,019.54 × 10,291.76
  4. Step 4: Simplify right side
    30,013.04x = 463,330,300.99
  5. Step 5: Solve for x
    x = 463,330,300.99/30,013.04
  6. Step 6: Final answer
    x = 15,437.63

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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.