Home / 28,368.40-42,495.27-14,308.87

Finding the Fourth Proportional to 28,368.40, 42,495.27 and 14,308.87

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Solution

The fourth proportional to 28,368.40, 42,495.27 and 14,308.87 is: 21,434.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,368.40 : 42,495.27 = 14,308.87 : x
  2. Step 2: Convert to fraction form
    28,368.40/42,495.27 = 14,308.87/x
  3. Step 3: Cross multiply
    28,368.40x = 42,495.27 × 14,308.87
  4. Step 4: Simplify right side
    28,368.40x = 608,059,294.04
  5. Step 5: Solve for x
    x = 608,059,294.04/28,368.40
  6. Step 6: Final answer
    x = 21,434.39

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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.