Home / 46,019.78-69,030.84-12,740.13

Finding the Fourth Proportional to 46,019.78, 69,030.84 and 12,740.13

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Solution

The fourth proportional to 46,019.78, 69,030.84 and 12,740.13 is: 19,110.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,019.78 : 69,030.84 = 12,740.13 : x
  2. Step 2: Convert to fraction form
    46,019.78/69,030.84 = 12,740.13/x
  3. Step 3: Cross multiply
    46,019.78x = 69,030.84 × 12,740.13
  4. Step 4: Simplify right side
    46,019.78x = 879,461,657.57
  5. Step 5: Solve for x
    x = 879,461,657.57/46,019.78
  6. Step 6: Final answer
    x = 19,110.52

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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.