Home / 40,019.81-60,030.79-10,436.99

Finding the Fourth Proportional to 40,019.81, 60,030.79 and 10,436.99

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Solution

The fourth proportional to 40,019.81, 60,030.79 and 10,436.99 is: 15,655.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,019.81 : 60,030.79 = 10,436.99 : x
  2. Step 2: Convert to fraction form
    40,019.81/60,030.79 = 10,436.99/x
  3. Step 3: Cross multiply
    40,019.81x = 60,030.79 × 10,436.99
  4. Step 4: Simplify right side
    40,019.81x = 626,540,428.68
  5. Step 5: Solve for x
    x = 626,540,428.68/40,019.81
  6. Step 6: Final answer
    x = 15,655.76

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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.