Home / 23,880.72-32,970.30-15,387.06

Finding the Fourth Proportional to 23,880.72, 32,970.30 and 15,387.06

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Solution

The fourth proportional to 23,880.72, 32,970.30 and 15,387.06 is: 21,243.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,880.72 : 32,970.30 = 15,387.06 : x
  2. Step 2: Convert to fraction form
    23,880.72/32,970.30 = 15,387.06/x
  3. Step 3: Cross multiply
    23,880.72x = 32,970.30 × 15,387.06
  4. Step 4: Simplify right side
    23,880.72x = 507,315,984.32
  5. Step 5: Solve for x
    x = 507,315,984.32/23,880.72
  6. Step 6: Final answer
    x = 21,243.75

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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.