Home / 39,392.61-59,079.92-11,312.45

Finding the Fourth Proportional to 39,392.61, 59,079.92 and 11,312.45

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Solution

The fourth proportional to 39,392.61, 59,079.92 and 11,312.45 is: 16,966.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,392.61 : 59,079.92 = 11,312.45 : x
  2. Step 2: Convert to fraction form
    39,392.61/59,079.92 = 11,312.45/x
  3. Step 3: Cross multiply
    39,392.61x = 59,079.92 × 11,312.45
  4. Step 4: Simplify right side
    39,392.61x = 668,338,289.04
  5. Step 5: Solve for x
    x = 668,338,289.04/39,392.61
  6. Step 6: Final answer
    x = 16,966.08

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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.