Home / 39,779.12-59,631.52-13,465.52

Finding the Fourth Proportional to 39,779.12, 59,631.52 and 13,465.52

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Solution

The fourth proportional to 39,779.12, 59,631.52 and 13,465.52 is: 20,185.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,779.12 : 59,631.52 = 13,465.52 : x
  2. Step 2: Convert to fraction form
    39,779.12/59,631.52 = 13,465.52/x
  3. Step 3: Cross multiply
    39,779.12x = 59,631.52 × 13,465.52
  4. Step 4: Simplify right side
    39,779.12x = 802,969,425.19
  5. Step 5: Solve for x
    x = 802,969,425.19/39,779.12
  6. Step 6: Final answer
    x = 20,185.70

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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.