Home / 43,457.08-59,971.64-28,359.40

Finding the Fourth Proportional to 43,457.08, 59,971.64 and 28,359.40

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Solution

The fourth proportional to 43,457.08, 59,971.64 and 28,359.40 is: 39,136.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,457.08 : 59,971.64 = 28,359.40 : x
  2. Step 2: Convert to fraction form
    43,457.08/59,971.64 = 28,359.40/x
  3. Step 3: Cross multiply
    43,457.08x = 59,971.64 × 28,359.40
  4. Step 4: Simplify right side
    43,457.08x = 1,700,759,727.42
  5. Step 5: Solve for x
    x = 1,700,759,727.42/43,457.08
  6. Step 6: Final answer
    x = 39,136.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.