Home / 39,681.20-59,521.80-38,903.60

Finding the Fourth Proportional to 39,681.20, 59,521.80 and 38,903.60

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Solution

The fourth proportional to 39,681.20, 59,521.80 and 38,903.60 is: 58,355.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,681.20 : 59,521.80 = 38,903.60 : x
  2. Step 2: Convert to fraction form
    39,681.20/59,521.80 = 38,903.60/x
  3. Step 3: Cross multiply
    39,681.20x = 59,521.80 × 38,903.60
  4. Step 4: Simplify right side
    39,681.20x = 2,315,612,298.48
  5. Step 5: Solve for x
    x = 2,315,612,298.48/39,681.20
  6. Step 6: Final answer
    x = 58,355.40

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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.