Home / 21,368.13-29,482.98-12,410.32

Finding the Fourth Proportional to 21,368.13, 29,482.98 and 12,410.32

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Solution

The fourth proportional to 21,368.13, 29,482.98 and 12,410.32 is: 17,123.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,368.13 : 29,482.98 = 12,410.32 : x
  2. Step 2: Convert to fraction form
    21,368.13/29,482.98 = 12,410.32/x
  3. Step 3: Cross multiply
    21,368.13x = 29,482.98 × 12,410.32
  4. Step 4: Simplify right side
    21,368.13x = 365,893,216.35
  5. Step 5: Solve for x
    x = 365,893,216.35/21,368.13
  6. Step 6: Final answer
    x = 17,123.31

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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.