Home / 28,698.71-39,603.95-15,951.56

Finding the Fourth Proportional to 28,698.71, 39,603.95 and 15,951.56

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Solution

The fourth proportional to 28,698.71, 39,603.95 and 15,951.56 is: 22,013.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,698.71 : 39,603.95 = 15,951.56 : x
  2. Step 2: Convert to fraction form
    28,698.71/39,603.95 = 15,951.56/x
  3. Step 3: Cross multiply
    28,698.71x = 39,603.95 × 15,951.56
  4. Step 4: Simplify right side
    28,698.71x = 631,744,506.88
  5. Step 5: Solve for x
    x = 631,744,506.88/28,698.71
  6. Step 6: Final answer
    x = 22,013.00

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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.