Home / 47,007.15-70,503.80-15,420.55

Finding the Fourth Proportional to 47,007.15, 70,503.80 and 15,420.55

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Solution

The fourth proportional to 47,007.15, 70,503.80 and 15,420.55 is: 23,128.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,007.15 : 70,503.80 = 15,420.55 : x
  2. Step 2: Convert to fraction form
    47,007.15/70,503.80 = 15,420.55/x
  3. Step 3: Cross multiply
    47,007.15x = 70,503.80 × 15,420.55
  4. Step 4: Simplify right side
    47,007.15x = 1,087,207,196.83
  5. Step 5: Solve for x
    x = 1,087,207,196.83/47,007.15
  6. Step 6: Final answer
    x = 23,128.55

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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.