Home / 39,424.60-59,136.90-18,688.60

Finding the Fourth Proportional to 39,424.60, 59,136.90 and 18,688.60

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Solution

The fourth proportional to 39,424.60, 59,136.90 and 18,688.60 is: 28,032.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,424.60 : 59,136.90 = 18,688.60 : x
  2. Step 2: Convert to fraction form
    39,424.60/59,136.90 = 18,688.60/x
  3. Step 3: Cross multiply
    39,424.60x = 59,136.90 × 18,688.60
  4. Step 4: Simplify right side
    39,424.60x = 1,105,185,869.34
  5. Step 5: Solve for x
    x = 1,105,185,869.34/39,424.60
  6. Step 6: Final answer
    x = 28,032.90

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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.