Home / 30,868.32-42,598.28-16,721.16

Finding the Fourth Proportional to 30,868.32, 42,598.28 and 16,721.16

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Solution

The fourth proportional to 30,868.32, 42,598.28 and 16,721.16 is: 23,075.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,868.32 : 42,598.28 = 16,721.16 : x
  2. Step 2: Convert to fraction form
    30,868.32/42,598.28 = 16,721.16/x
  3. Step 3: Cross multiply
    30,868.32x = 42,598.28 × 16,721.16
  4. Step 4: Simplify right side
    30,868.32x = 712,292,697.41
  5. Step 5: Solve for x
    x = 712,292,697.41/30,868.32
  6. Step 6: Final answer
    x = 23,075.20

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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.