Home / 20,860,031.40-31,248,056.70-14,477,490.60

Finding the Fourth Proportional to 20,860,031.40, 31,248,056.70 and 14,477,490.60

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Solution

The fourth proportional to 20,860,031.40, 31,248,056.70 and 14,477,490.60 is: 21,687,093.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,860,031.40 : 31,248,056.70 = 14,477,490.60 : x
  2. Step 2: Convert to fraction form
    20,860,031.40/31,248,056.70 = 14,477,490.60/x
  3. Step 3: Cross multiply
    20,860,031.40x = 31,248,056.70 × 14,477,490.60
  4. Step 4: Simplify right side
    20,860,031.40x = 452,393,447,142,517
  5. Step 5: Solve for x
    x = 452,393,447,142,517/20,860,031.40
  6. Step 6: Final answer
    x = 21,687,093.30

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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.