Home / 15,535.29-21,423.85-10,442.31

Finding the Fourth Proportional to 15,535.29, 21,423.85 and 10,442.31

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Solution

The fourth proportional to 15,535.29, 21,423.85 and 10,442.31 is: 14,400.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,535.29 : 21,423.85 = 10,442.31 : x
  2. Step 2: Convert to fraction form
    15,535.29/21,423.85 = 10,442.31/x
  3. Step 3: Cross multiply
    15,535.29x = 21,423.85 × 10,442.31
  4. Step 4: Simplify right side
    15,535.29x = 223,714,483.09
  5. Step 5: Solve for x
    x = 223,714,483.09/15,535.29
  6. Step 6: Final answer
    x = 14,400.41

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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.