Home / 31,436.64-47,077.20-19,714.32

Finding the Fourth Proportional to 31,436.64, 47,077.20 and 19,714.32

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Solution

The fourth proportional to 31,436.64, 47,077.20 and 19,714.32 is: 29,522.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,436.64 : 47,077.20 = 19,714.32 : x
  2. Step 2: Convert to fraction form
    31,436.64/47,077.20 = 19,714.32/x
  3. Step 3: Cross multiply
    31,436.64x = 47,077.20 × 19,714.32
  4. Step 4: Simplify right side
    31,436.64x = 928,094,985.50
  5. Step 5: Solve for x
    x = 928,094,985.50/31,436.64
  6. Step 6: Final answer
    x = 29,522.72

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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.