Home / 31,442.03-47,153.01-10,378.16

Finding the Fourth Proportional to 31,442.03, 47,153.01 and 10,378.16

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Solution

The fourth proportional to 31,442.03, 47,153.01 and 10,378.16 is: 15,563.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,442.03 : 47,153.01 = 10,378.16 : x
  2. Step 2: Convert to fraction form
    31,442.03/47,153.01 = 10,378.16/x
  3. Step 3: Cross multiply
    31,442.03x = 47,153.01 × 10,378.16
  4. Step 4: Simplify right side
    31,442.03x = 489,361,482.26
  5. Step 5: Solve for x
    x = 489,361,482.26/31,442.03
  6. Step 6: Final answer
    x = 15,563.93

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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.