Home / 19,315.99-28,954.29-10,870.07

Finding the Fourth Proportional to 19,315.99, 28,954.29 and 10,870.07

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Solution

The fourth proportional to 19,315.99, 28,954.29 and 10,870.07 is: 16,294.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,315.99 : 28,954.29 = 10,870.07 : x
  2. Step 2: Convert to fraction form
    19,315.99/28,954.29 = 10,870.07/x
  3. Step 3: Cross multiply
    19,315.99x = 28,954.29 × 10,870.07
  4. Step 4: Simplify right side
    19,315.99x = 314,735,207.68
  5. Step 5: Solve for x
    x = 314,735,207.68/19,315.99
  6. Step 6: Final answer
    x = 16,294.02

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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.