Home / 28,606.07-39,475.87-15,859.19

Finding the Fourth Proportional to 28,606.07, 39,475.87 and 15,859.19

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Solution

The fourth proportional to 28,606.07, 39,475.87 and 15,859.19 is: 21,885.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,606.07 : 39,475.87 = 15,859.19 : x
  2. Step 2: Convert to fraction form
    28,606.07/39,475.87 = 15,859.19/x
  3. Step 3: Cross multiply
    28,606.07x = 39,475.87 × 15,859.19
  4. Step 4: Simplify right side
    28,606.07x = 626,055,381.79
  5. Step 5: Solve for x
    x = 626,055,381.79/28,606.07
  6. Step 6: Final answer
    x = 21,885.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.