Home / 42,070.84-63,112.08-15,413.40

Finding the Fourth Proportional to 42,070.84, 63,112.08 and 15,413.40

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Solution

The fourth proportional to 42,070.84, 63,112.08 and 15,413.40 is: 23,122.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,070.84 : 63,112.08 = 15,413.40 : x
  2. Step 2: Convert to fraction form
    42,070.84/63,112.08 = 15,413.40/x
  3. Step 3: Cross multiply
    42,070.84x = 63,112.08 × 15,413.40
  4. Step 4: Simplify right side
    42,070.84x = 972,771,733.87
  5. Step 5: Solve for x
    x = 972,771,733.87/42,070.84
  6. Step 6: Final answer
    x = 23,122.23

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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.