Home / 28,342.19-39,112.95-15,595.70

Finding the Fourth Proportional to 28,342.19, 39,112.95 and 15,595.70

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Solution

The fourth proportional to 28,342.19, 39,112.95 and 15,595.70 is: 21,522.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,342.19 : 39,112.95 = 15,595.70 : x
  2. Step 2: Convert to fraction form
    28,342.19/39,112.95 = 15,595.70/x
  3. Step 3: Cross multiply
    28,342.19x = 39,112.95 × 15,595.70
  4. Step 4: Simplify right side
    28,342.19x = 609,993,638.75
  5. Step 5: Solve for x
    x = 609,993,638.75/28,342.19
  6. Step 6: Final answer
    x = 21,522.46

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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.