Home / 28,312.91-39,068.58-22,645.59

Finding the Fourth Proportional to 28,312.91, 39,068.58 and 22,645.59

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Solution

The fourth proportional to 28,312.91, 39,068.58 and 22,645.59 is: 31,248.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,312.91 : 39,068.58 = 22,645.59 : x
  2. Step 2: Convert to fraction form
    28,312.91/39,068.58 = 22,645.59/x
  3. Step 3: Cross multiply
    28,312.91x = 39,068.58 × 22,645.59
  4. Step 4: Simplify right side
    28,312.91x = 884,731,075.36
  5. Step 5: Solve for x
    x = 884,731,075.36/28,312.91
  6. Step 6: Final answer
    x = 31,248.33

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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.