Home / 39,531.78-59,307.39-15,840.90

Finding the Fourth Proportional to 39,531.78, 59,307.39 and 15,840.90

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Solution

The fourth proportional to 39,531.78, 59,307.39 and 15,840.90 is: 23,765.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,531.78 : 59,307.39 = 15,840.90 : x
  2. Step 2: Convert to fraction form
    39,531.78/59,307.39 = 15,840.90/x
  3. Step 3: Cross multiply
    39,531.78x = 59,307.39 × 15,840.90
  4. Step 4: Simplify right side
    39,531.78x = 939,482,434.25
  5. Step 5: Solve for x
    x = 939,482,434.25/39,531.78
  6. Step 6: Final answer
    x = 23,765.24

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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.