Home / 27,420.72-37,838.52-15,482.40

Finding the Fourth Proportional to 27,420.72, 37,838.52 and 15,482.40

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Solution

The fourth proportional to 27,420.72, 37,838.52 and 15,482.40 is: 21,364.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,420.72 : 37,838.52 = 15,482.40 : x
  2. Step 2: Convert to fraction form
    27,420.72/37,838.52 = 15,482.40/x
  3. Step 3: Cross multiply
    27,420.72x = 37,838.52 × 15,482.40
  4. Step 4: Simplify right side
    27,420.72x = 585,831,102.05
  5. Step 5: Solve for x
    x = 585,831,102.05/27,420.72
  6. Step 6: Final answer
    x = 21,364.54

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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.