Home / 28,426,381.25-39,228,432.32-15,373,640.18

Finding the Fourth Proportional to 28,426,381.25, 39,228,432.32 and 15,373,640.18

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Solution

The fourth proportional to 28,426,381.25, 39,228,432.32 and 15,373,640.18 is: 21,215,637.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,426,381.25 : 39,228,432.32 = 15,373,640.18 : x
  2. Step 2: Convert to fraction form
    28,426,381.25/39,228,432.32 = 15,373,640.18/x
  3. Step 3: Cross multiply
    28,426,381.25x = 39,228,432.32 × 15,373,640.18
  4. Step 4: Simplify right side
    28,426,381.25x = 603,083,803,449,667.75
  5. Step 5: Solve for x
    x = 603,083,803,449,667.75/28,426,381.25
  6. Step 6: Final answer
    x = 21,215,637.62

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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.