Home / 15,931.60-23,897.40-13,166.80

Finding the Fourth Proportional to 15,931.60, 23,897.40 and 13,166.80

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Solution

The fourth proportional to 15,931.60, 23,897.40 and 13,166.80 is: 19,750.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,931.60 : 23,897.40 = 13,166.80 : x
  2. Step 2: Convert to fraction form
    15,931.60/23,897.40 = 13,166.80/x
  3. Step 3: Cross multiply
    15,931.60x = 23,897.40 × 13,166.80
  4. Step 4: Simplify right side
    15,931.60x = 314,652,286.32
  5. Step 5: Solve for x
    x = 314,652,286.32/15,931.60
  6. Step 6: Final answer
    x = 19,750.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.