Home / 39,030.20-58,495.16-20,307.66

Finding the Fourth Proportional to 39,030.20, 58,495.16 and 20,307.66

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Solution

The fourth proportional to 39,030.20, 58,495.16 and 20,307.66 is: 30,435.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,030.20 : 58,495.16 = 20,307.66 : x
  2. Step 2: Convert to fraction form
    39,030.20/58,495.16 = 20,307.66/x
  3. Step 3: Cross multiply
    39,030.20x = 58,495.16 × 20,307.66
  4. Step 4: Simplify right side
    39,030.20x = 1,187,899,820.93
  5. Step 5: Solve for x
    x = 1,187,899,820.93/39,030.20
  6. Step 6: Final answer
    x = 30,435.40

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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.