Home / 23,931.40-32,991.18-15,970.72

Finding the Fourth Proportional to 23,931.40, 32,991.18 and 15,970.72

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Solution

The fourth proportional to 23,931.40, 32,991.18 and 15,970.72 is: 22,016.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,931.40 : 32,991.18 = 15,970.72 : x
  2. Step 2: Convert to fraction form
    23,931.40/32,991.18 = 15,970.72/x
  3. Step 3: Cross multiply
    23,931.40x = 32,991.18 × 15,970.72
  4. Step 4: Simplify right side
    23,931.40x = 526,892,898.25
  5. Step 5: Solve for x
    x = 526,892,898.25/23,931.40
  6. Step 6: Final answer
    x = 22,016.80

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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.