Home / 42,307.26-63,462.51-12,729.30

Finding the Fourth Proportional to 42,307.26, 63,462.51 and 12,729.30

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Solution

The fourth proportional to 42,307.26, 63,462.51 and 12,729.30 is: 19,094.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,307.26 : 63,462.51 = 12,729.30 : x
  2. Step 2: Convert to fraction form
    42,307.26/63,462.51 = 12,729.30/x
  3. Step 3: Cross multiply
    42,307.26x = 63,462.51 × 12,729.30
  4. Step 4: Simplify right side
    42,307.26x = 807,833,328.54
  5. Step 5: Solve for x
    x = 807,833,328.54/42,307.26
  6. Step 6: Final answer
    x = 19,094.44

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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.