Home / 39,509.10-54,567.81-28,801.71

Finding the Fourth Proportional to 39,509.10, 54,567.81 and 28,801.71

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Solution

The fourth proportional to 39,509.10, 54,567.81 and 28,801.71 is: 39,779.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,509.10 : 54,567.81 = 28,801.71 : x
  2. Step 2: Convert to fraction form
    39,509.10/54,567.81 = 28,801.71/x
  3. Step 3: Cross multiply
    39,509.10x = 54,567.81 × 28,801.71
  4. Step 4: Simplify right side
    39,509.10x = 1,571,646,238.96
  5. Step 5: Solve for x
    x = 1,571,646,238.96/39,509.10
  6. Step 6: Final answer
    x = 39,779.35

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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.